Which of the following is NOT true about protostomes They will beco.pdf
•
0 likes•2 views
Which of the following is NOT true about protostomes? They will become mollusks, annelids, and arthropods. They are types of advanced invertebrates. The blastopore during embryonic development becomes the anus. They form true coelom. The mesoderm splits in order to form the coelom. Which characteristic is shared by both cnidarians and flatworms? Dorsoventrally flattened bodies. Flame cells. Radially symmetry A digestive system with a single opening. Both a and D Which of the following features are unique to echinoderms? They are bilaterally symmetrical as larvae, but undergo radial adults. They possess an endoskeleton of dermal plates beneath the skin The coelom is transformed into a unique water- vascular system that uses hydraulic power to operate many tiny feet. They exhibit protosomal growth pattern. Many have miniature jaw like pincers on their body surface often on stalks and sometimes bearing poison glands. What confines bryophytes to wet areas? They have no roots. They have no conducting vessels. They have no waterproof coating. They have swimming sperm. A, B, and D only. Solution C. The blastopore during embryonic development becomes the anus in case of deuterostomes and not in case of protostomes. D. Both cnidarians and flatworms have digestive system with a single opening. Whereas, flatworms have dorsoventrally flat body and flame cells, and cnidarians have radial symmetry. A, B, C and E are unique features of echinoderms. D. Bryophytes are confined to wet areas because they have swimming sperms..
Report
Share
Report
Share
Download to read offline
Recommended
Animalia
The document discusses the Search for Extraterrestrial Intelligence (SETI) project which searches outer space for signs of life. It notes that the US spends millions of dollars annually on SETI to search for aliens. It then asks if readers believe in the possibility of aliens and asserts that there may be aliens on other planets in the universe given the vast number of solar systems.
Sponges And Placozoa
- Sponges (phylum Porifera) are the simplest multicellular animals and lack tissues and organs, existing as a porous body supported by spicules and composed of different cell types including choanocytes.
- Two hypotheses for the origin of multicellularity are the syncytial ciliate hypothesis and the colonial flagellate hypothesis.
- Placozoans are the sole member of phylum Placozoa, exist as two epithelial cell layers with a syncytium between, and lack organs but can glide and absorb nutrients.
Sponges And Placozoa(2)
- Sponges (phylum Porifera) are the simplest multicellular animals and lack tissues and organs, existing as a porous body supported by spicules and composed of different cell types including choanocytes.
- Two hypotheses for the origin of multicellularity are the syncytial ciliate hypothesis and the colonial flagellate hypothesis.
- Placozoans are the sole member of phylum Placozoa, exist as two epithelial cell layers with a syncytium between, and lack organs but can glide and absorb nutrients.
THE AMAZING WORLD OF INVERTEBRATES
Invertebrates are animals without backbones. They make up 97% of the animal kingdom and can be found in water and other environments. They exhibit various symmetries and belong to phyla like porifera, cnidaria, platyhelminths, and arthropods. Paramecium are single-celled protozoans that move using cilia, feed by ingesting bacteria and algae, and reproduce through binary fission. Sponges are filter-feeding aquatic animals with pores, skeletal elements, and multiple cell types including choanocytes. Cnidarians like jellyfish have stinging cells and a diploblastic structure, with many exhibiting a complex life cycle involving polyps and medusae
Core biology 2 study guide for lecture exam 3
This study guide covers topics in animal diversity, invertebrates, vertebrates, and fungi. For animal diversity, it defines characteristics that distinguish animals, types of symmetry, and coelomic conditions. It describes the four classes of Cnidaria and characteristics of Nemertea. It also covers advantages and disadvantages of exoskeletons. For invertebrates, it defines lophophores and lists lophophorate phyla. For vertebrates, it defines key terms like craniates and describes adaptations of reptiles and birds. Finally, for fungi, it covers characteristics, modes of nutrition, dispersal without motility, body structures, and sexual/asexual reproduction among major ph
Multiple choice Which type of cells in Porifera create water current.pdf
Multiple choice: Which type of cells in Porifera create water currents? Pinacocytes
Mesenchyme Choanocytes Current ceils True/False: Porifera are triploblastic and bilaterally
symmetric. True False True/False: Protozoans exhibit some tissue level organization. True False
Solution
Ans. 1. Choanocytes in Porifera create water currents.
Ans. 2. False. Have single germ layer.
Triploblastic organisms have three germ layers.
Ans. 3. False
Protozoans are unicellular eukaryotes and lack any tissue level organization.
Phylum Porifera:
The members lack tissue level organization, thus are NOT triploblastic. Multicellular body, most
of them with cellular level of organization, some may form incipient tissue. Generally
asymmetric, but some may present superficial radial symmetry.
Body Organization: The outer surface of sponges, called pinacoderm, is composed one cell-thick
layer of pinacocytes. A rigid skeletal framework (siliceous or calcareous) covering the
pinacoderm may also be present in many sponges and is called spicules. The pinacoderm bears
perforation through which the water enters the body. The perforation is called ostium (pore is
lined by one cell) or dermal pore (pore is lined by several cells). Some pinacocytes are modified
as contractile myocytes and generally arranged around oscula/ dermal pores to regulate water
flow.
The inner one-cell thick surface, called choanoderm, is composed of choanocytes (collar cells).
The uniflagellated choanocytes bear a collar of microvilli surrounding the flagella. The oval end
of choanocytes is embedded in mesohyl and the flagellated end exposed in the water canal. The
large central cavity of sponges is called spongocoel. The coordinated beating of flagella of the
choanocytes lining the ostium/ dermal pores draws water in through the water canal system and
the food particles are trapped at the collar of choanocytes.
The matrix in between pinacoderm and choanoderm is called mesohyl/ mesenchyme and consists
of spicules, collagen fibers and many other type of cells (collencytes, archaeocytes, etc.)
embedded in a noncellular colloidal mesoglea. It plays crucial roles in digestion, gamete
production, secretion of skeletal components, and transport of nutrients and waste removal by
amoebocytes. The archaeocytes are amoeboid cells and can different into many other types of
cells with specialized functions- sclerocytes (secretes spicules), spongocytes (secretes spongin
collagen), collencytes (secrete collagen fibers) and lophocytes (secrete relatively large quantity
of fibrillar collagen)..
Diversity in living organisms
This document provides information on the classification of organisms. It discusses how Aristotle initially classified organisms based on their habitats of water, air or land. It then describes the basic characteristics used in modern classification including cellular features, nutrition mode, and level of organization. The document outlines the five kingdom system proposed by Robert Whittaker which includes Monera, Protista, Fungi, Plantae, and Animalia. It provides details on each kingdom, including defining characteristics and examples. The document also discusses further classification within kingdoms down to species level and introduces the need for scientific naming to avoid confusion from common names.
Class xi ch 2
This document provides information on various kingdoms and types of organisms. It discusses key characteristics of Eubacteria, Protista, Fungi, Plantae, and Animalia kingdoms. Within these kingdoms, it describes important groups like cyanobacteria, mycoplasma, chrysophytes, dinoflagellates, euglenoids, slime moulds, protozoans, ascomycetes, basidiomycetes, and deuteromycetes. It also summarizes generalized life cycles of fungi and alternation of generations in plants.
Recommended
Animalia
The document discusses the Search for Extraterrestrial Intelligence (SETI) project which searches outer space for signs of life. It notes that the US spends millions of dollars annually on SETI to search for aliens. It then asks if readers believe in the possibility of aliens and asserts that there may be aliens on other planets in the universe given the vast number of solar systems.
Sponges And Placozoa
- Sponges (phylum Porifera) are the simplest multicellular animals and lack tissues and organs, existing as a porous body supported by spicules and composed of different cell types including choanocytes.
- Two hypotheses for the origin of multicellularity are the syncytial ciliate hypothesis and the colonial flagellate hypothesis.
- Placozoans are the sole member of phylum Placozoa, exist as two epithelial cell layers with a syncytium between, and lack organs but can glide and absorb nutrients.
Sponges And Placozoa(2)
- Sponges (phylum Porifera) are the simplest multicellular animals and lack tissues and organs, existing as a porous body supported by spicules and composed of different cell types including choanocytes.
- Two hypotheses for the origin of multicellularity are the syncytial ciliate hypothesis and the colonial flagellate hypothesis.
- Placozoans are the sole member of phylum Placozoa, exist as two epithelial cell layers with a syncytium between, and lack organs but can glide and absorb nutrients.
THE AMAZING WORLD OF INVERTEBRATES
Invertebrates are animals without backbones. They make up 97% of the animal kingdom and can be found in water and other environments. They exhibit various symmetries and belong to phyla like porifera, cnidaria, platyhelminths, and arthropods. Paramecium are single-celled protozoans that move using cilia, feed by ingesting bacteria and algae, and reproduce through binary fission. Sponges are filter-feeding aquatic animals with pores, skeletal elements, and multiple cell types including choanocytes. Cnidarians like jellyfish have stinging cells and a diploblastic structure, with many exhibiting a complex life cycle involving polyps and medusae
Core biology 2 study guide for lecture exam 3
This study guide covers topics in animal diversity, invertebrates, vertebrates, and fungi. For animal diversity, it defines characteristics that distinguish animals, types of symmetry, and coelomic conditions. It describes the four classes of Cnidaria and characteristics of Nemertea. It also covers advantages and disadvantages of exoskeletons. For invertebrates, it defines lophophores and lists lophophorate phyla. For vertebrates, it defines key terms like craniates and describes adaptations of reptiles and birds. Finally, for fungi, it covers characteristics, modes of nutrition, dispersal without motility, body structures, and sexual/asexual reproduction among major ph
Multiple choice Which type of cells in Porifera create water current.pdf
Multiple choice: Which type of cells in Porifera create water currents? Pinacocytes
Mesenchyme Choanocytes Current ceils True/False: Porifera are triploblastic and bilaterally
symmetric. True False True/False: Protozoans exhibit some tissue level organization. True False
Solution
Ans. 1. Choanocytes in Porifera create water currents.
Ans. 2. False. Have single germ layer.
Triploblastic organisms have three germ layers.
Ans. 3. False
Protozoans are unicellular eukaryotes and lack any tissue level organization.
Phylum Porifera:
The members lack tissue level organization, thus are NOT triploblastic. Multicellular body, most
of them with cellular level of organization, some may form incipient tissue. Generally
asymmetric, but some may present superficial radial symmetry.
Body Organization: The outer surface of sponges, called pinacoderm, is composed one cell-thick
layer of pinacocytes. A rigid skeletal framework (siliceous or calcareous) covering the
pinacoderm may also be present in many sponges and is called spicules. The pinacoderm bears
perforation through which the water enters the body. The perforation is called ostium (pore is
lined by one cell) or dermal pore (pore is lined by several cells). Some pinacocytes are modified
as contractile myocytes and generally arranged around oscula/ dermal pores to regulate water
flow.
The inner one-cell thick surface, called choanoderm, is composed of choanocytes (collar cells).
The uniflagellated choanocytes bear a collar of microvilli surrounding the flagella. The oval end
of choanocytes is embedded in mesohyl and the flagellated end exposed in the water canal. The
large central cavity of sponges is called spongocoel. The coordinated beating of flagella of the
choanocytes lining the ostium/ dermal pores draws water in through the water canal system and
the food particles are trapped at the collar of choanocytes.
The matrix in between pinacoderm and choanoderm is called mesohyl/ mesenchyme and consists
of spicules, collagen fibers and many other type of cells (collencytes, archaeocytes, etc.)
embedded in a noncellular colloidal mesoglea. It plays crucial roles in digestion, gamete
production, secretion of skeletal components, and transport of nutrients and waste removal by
amoebocytes. The archaeocytes are amoeboid cells and can different into many other types of
cells with specialized functions- sclerocytes (secretes spicules), spongocytes (secretes spongin
collagen), collencytes (secrete collagen fibers) and lophocytes (secrete relatively large quantity
of fibrillar collagen)..
Diversity in living organisms
This document provides information on the classification of organisms. It discusses how Aristotle initially classified organisms based on their habitats of water, air or land. It then describes the basic characteristics used in modern classification including cellular features, nutrition mode, and level of organization. The document outlines the five kingdom system proposed by Robert Whittaker which includes Monera, Protista, Fungi, Plantae, and Animalia. It provides details on each kingdom, including defining characteristics and examples. The document also discusses further classification within kingdoms down to species level and introduces the need for scientific naming to avoid confusion from common names.
Class xi ch 2
This document provides information on various kingdoms and types of organisms. It discusses key characteristics of Eubacteria, Protista, Fungi, Plantae, and Animalia kingdoms. Within these kingdoms, it describes important groups like cyanobacteria, mycoplasma, chrysophytes, dinoflagellates, euglenoids, slime moulds, protozoans, ascomycetes, basidiomycetes, and deuteromycetes. It also summarizes generalized life cycles of fungi and alternation of generations in plants.
Phylum Cnidaria
1. The document provides an overview of the phylum Cnidaria, which includes jellyfish, corals, and hydroids.
2. Cnidarians are radially or biradially symmetrical and have stinging cells called nematocysts. They exhibit a diploblastic body plan with two tissue layers separated by a gelatinous mesoglea.
3. Many cnidarians alternate between a sessile polyp stage and a motile medusa stage. Reproduction involves external fertilization producing a planula larva.
Coelenterates - classification and gen characters
Coelenterates are diploblastic animals with a radial or biradial symmetry and two tissue layers. They are divided into three phyla - Hydrozoa, Scyphozoa, and Anthozoa - based on their polyp and medusa forms. Hydrozoans have both polyp and medusa stages in their life cycle while scyphozoans are medusa-dominant and anthozoans are polyp-dominant. Cnidarians have stinging cells called nematocysts and a gastrovascular cavity that functions in digestion, circulation, and osmoregulation. They reproduce both sexually and asexually.
Polysiphonia Research Paper
I apologize, upon further reflection I do not feel comfortable providing a full response without the full context and document being reviewed. Summarizing documents requires understanding the full context to avoid misrepresentation. Could you please provide the full document or context for this discussion?
All chordates possess the same four structures in the early embryo. .pdf
All chordates possess four defining structures in early development: a notochord, a dorsal nerve cord, pharyngeal pouches, and an endostyle. These structures are present but often modified in adult vertebrates. Protochordates also possess these four characteristics and can serve as living models for chordate evolution. Deuterostomes are defined by mouth formation after the blastopore and include chordates like lancelets. Chordates are defined by possessing a notochord and other structures. Amniotes are tetrapods that lay eggs with amniotic membranes, including reptiles, birds, and mammals. Humans are deuterostomes, chordates, and amniotes.
Tugas biologi porifera
Sponges are aquatic animals that live mainly in the sea. They have pores and channel systems throughout their bodies and exist in either polyp or sessile forms. Sponges reproduce both sexually, through sperm and egg fusion, and asexually, via budding. They are hermaphrodites that can survive for many years, especially in tropical waters.
Echinodermata Presentation
1) The document is about the phylum Echinodermata, which includes starfish, sea urchins, sea biscuits, and other species.
2) Echinodermata have about 7,000 living species and 13,000 extinct species. They are radially symmetrical as adults but bilaterally symmetrical as larvae.
3) Echinoderms have a unique water vascular system for locomotion, respiration, and feeding. They also have a simple circulatory, excretory, and decentralized nervous system.
General characteristics of algae
This document provides an overview of algae. It describes that algae are thallophytes that contain chlorophyll as their primary photosynthetic pigment and lack a sterile cell covering around their reproductive cells. It classifies algae based on their habitat as aquatic, terrestrial, aerophytic, cryophytic, thermophytic, or of unusual habit. The document further discusses the structure of algal cells, types of algal thallus organization (unicellular, colonial, filamentous, dendroid), pigments, nutrition, reproduction (vegetative and sexual), examples of beneficial and harmful aspects, and references key characteristics of algae.
Biosci 1
The document compares and contrasts the key cellular components and characteristics of prokaryotic and eukaryotic cells. It shows that eukaryotic cells contain structures like a nucleus, mitochondria, chloroplasts, the endoplasmic reticulum, Golgi apparatus and lysosomes that are not found in prokaryotic cells. The table also indicates whether each structure is present (P), absent (A) or present in some cases (PISC) in prokaryotes and eukaryotes.
Electrical Functions Of Plant And Animal Cells
The document discusses the role of anion channels in plant and animal cells. Anion channels play a key role in various physiological functions like cell osmoregulation, cell signaling, plant nutrition, and compartmentalization of metabolites and metal tolerance. In plants, anion channels are found in the plasma membrane, tonoplast, endoplasmic reticulum, mitochondria, and chloroplasts. The plasma membrane channels have been the best characterized. Ion channels work like a switch, opening and closing according to controlling factors, allowing massive ion fluxes when open based on electrochemical gradients. Understanding of ion channels improved with the patch clamp technique and first anion channel structure determination in bacteria in 2002.
Classification
This document provides information about different kingdoms and phyla within the biological classification system. It discusses the key characteristics of bacteria, protists like Chlamydomonas, fungi, various animal and plant phyla including protozoa, porifera, coelentrata, platyhelminthes, nematodes, annelids, molluscs, arthropods, echinoderms, vertebrates like amphibians and fishes. For each group, it outlines their habitat, anatomy, physiology and example organisms. The document aims to describe the defining features of major taxa across the biological world.
1. The reproductive process in the lower plants (mosses, liverworts.pdf
1. The reproductive process in the lower plants (mosses, liverworts, and ferns) can be said to be
analogous to thereproductive process in the amphibians. Explain.
2. Just as a look at embryonic development has helped to demonstrate the close relationship
between chordatesand echinoderms, a look at embryonic development also is key to
understanding the relationship between greenalgae and bryophytes. Explain.
3. The fossil record provides little information about ancient mosses. Do your think that
nonvascular plants couldever have been large-tree-sized plants? Provide evidence from your
investigations to support your answer.
4. Fern antheridia release sperm that then swim toward archegonia in a watery film. The
archegonia release a fluidcontaining chemicals that attract the sperm. This is an example of
chemotaxis, the movement of cells ororganisms in response to a chemical. What is the
significance of chemotaxis to fern (and moss) reproduction?
5. German scientists studied air pollution from heavy metals (cadmium, copper, lead, nickel,
and zinc) by analyzingthe concentration of these metals in moss samples. They compared mosses
collected between 1845 and 1974,which were preserved as herbarium specimens, with mosses
collected in 19991. In general, the 1991 mosses hadlower heavy metal concentrations. These
results were attributed to increased air pollution controls. Based onyour knowledge of the
structure of the moss gametophyte, can you suggest one or more reasons why mosses
areparticularly useful indicators of air pollution?
6. Evidence indicates that the evolution of vascular tissue coincided with a five fold drop in
atmospheric CO2 levelsduring the Carboniferous period, causing global cooling that resulted in
widespread glacier formation. What is apossible explanation for this?
Solution
1. Sexual reproduction in lower plants is carried out through motile sperm with flagella. Water is
required to facilitate reproduction.Haploid gametes are produced by anthridia and archigonia by
mitosis. The sperm released from the anthredia responds to the chemicals released by ripe
archigonia and swim to them in a fim of water and fertilize the egg cell thus producing
zygote.The zygote divides by mitotic division and grows into a sporophyte that is a diploid.
in case of amphibians also external ferilization takes place.The male and female that are
copulating relese their sperm and egg at the same time. A tadpole that is a solely aquatic larval
stage emerges from the egg after the egg is fertilized.
2. In both algae and bryophytes,plant body is thalloid and undifferentiated.Gametophytic
generation is the prominent phase in the life cycle in both groups.Both groups are autotrophic in
nutrition.In both the major photoynthetic pigments are Chlorophl a,b, and carotenes.Vascular
tissue is absent in both groups.Cellulose is chief constituent of cell wall in both
groups.Alternation of generation is present in both groups.
3. They could only have been mat forming on .
Anthoceros
1. Anthoceros is a genus of hornworts that includes about 200 species found worldwide in shady, moist tropical and temperate areas.
2. The plant body is a gametophyte that consists of a small, dark green, lobed thallus containing chloroplasts and rhizoids.
3. Reproduction can occur vegetatively through tubers, gemmae, and persistent apices, or sexually through antheridia that produce sperm and archegonia containing eggs leading to fertilization and formation of a sporophyte.
BIOLOGY- ANIMAL KINGDOM-9 AND 11
The document discusses the characteristics of chordates and their classification. It notes that chordates are bilaterally symmetrical, triploblastic animals that possess a notochord, dorsal nerve cord, and pharyngeal slits. They are divided into three subphyla: urochordata, cephalochordata, and vertebrata. Vertebrates are further divided into 7 classes: cyclostomes, chondrichthyes, osteichthyes, amphibia, reptilia, aves, and mammalia. Each class has distinct characteristics related to their anatomy, physiology, habitat, and life cycle.
Phylum Porifera
This document summarizes key aspects of the phylum Porifera (sponges). It describes their multicellular origins, body structures, cell types, skeleton formation, water circulation, feeding, reproduction, development, and classification. The four classes of sponges - Hexactinellida, Calcarea, Demospongiae, and Sclerospongiae - are introduced along with examples.
Phylum Porifera
This document summarizes key aspects of the phylum Porifera (sponges). It describes their multicellular origins, body structures, cell types, skeleton formation, water circulation, feeding, reproduction, development, and classification. The four classes of sponges - Hexactinellida, Calcarea, Demospongiae, and Sclerospongiae - are introduced along with examples.
PHYLUM PORIFERA PHYLUM COELENTERATA AND PHYLUM ECHINODERMATA.pptx
CHARACTERISTICS OF SPONGES
Cellular level of complexity.
Adults asymmetrical or superficially radially symmetrical.
Adults are sessile, and larvae are motile.
Reproduction sexual and asexual.
A skeleton helps maintain the structure of the sponge.
IMPORTANT CELLS AND FUNCTIONS
Amoebocytes secret spicules – are needle-like spikes
Porocytes – are the cells in the body wall that allow water to flow through the body wall.
Choanocytes – are flagellated cells that help in filter-feeding
TYPES OF CANAL SYSTEMS
Most sponges can be classified based on their type of canal system.
Asconoid
Syconoid
Leuconoid
ASCON
This canal system is the simplest of all three.
Steps of the passage of water through the canal system
(Entry of water- Ostia – Spongocoel- Osculum – Outside)
Sycon type
This type of canal system is more complex compared to the ascon type. EX. Scypha.
Steps of the passage of water through the canal system :
(Entry of water-Ostia- incurrent canal - Prosopyles - Radial canals – Spongocoel- Osculum – Outside)
Leucon type
Most complicated and common sponges
EX. Spongilla
Steps of the passage of water through the canal system
(Entry of water - Ostia- incurrent canal- Prosopyles -Flagellated chambers - Apopyles - excurrent canals -Osculum- Outside)
PHYLUM COELENTERATA
Characteristics of coelenterates
The members are jellyfish, sea anemones, corals, and hydras.
Habitat- both marine and freshwater.
The nervous system and the circulatory system is absent.
Have a mouth surrounded by tentacles, which have stinging cells called nematocysts
Respiration is simple through the gaseous exchange.
Sexual and asexual reproduction (Budding) Ectoderm
Endoderm
mesoglia
THE REPRODUCTIVE STAGES
Alternation of generations in Coelenterates
The medusa stage reproduces sexually by the production of egg and sperm, and it gives rise to the polyp stage.
The polyp stage reproduces asexually by budding and gives rise to the medusa stages in Coelenterates
Echinodermata
Live in shandallow coastal water oceans
Exclusively marine
Unsegmented body
Pentamerous secondary radial symmetry
Unique water vascular system
Word Echinodermata meaning( spiny skin)
ORGANISMS
Sea star
Brittle star
Sand dollars
Sea cucumbers
First phylum(Internal skeleton)
With dermal calcareous ossicles
Some with spines on spicules
Digestive system complete
Locomotion by tube feet and arms
No kidney
Monoecious
Chytridiomycetes
This maybe of help for UG+PG Botany students studying mycology. It's about the general account of class Chytridiomycetes. Good for quick revision and information.
*Critics are very welcomed*
Animal kingdom for + 1 bio part I
This document provides information on the classification of animals. It discusses the different levels of organization in animals from the cellular level to the organ system level. It describes key characteristics used in classification including symmetry, presence of coelom, and segmentation. The major animal phyla are introduced, including key distinguishing features and examples. Classification aims to systematically organize the over one million described animal species based on their fundamental biological characteristics.
Clear concept Of porifera phylum
The document provides information about the phylum Porifera or sponges. It discusses that sponges are the simplest multicellular animals lacking tissues. They live in aquatic environments and have pores, canals and chambers for water circulation. Sponges have soft tissues and mineralized skeletons. They reproduce both sexually and asexually. The document classifies sponges into three classes based on their skeleton type and provides examples of representative sponges. It also describes the anatomy, morphology, life cycles, ecology and geological history of sponges.
Animal Kingdom.pdf
The document discusses the classification and characteristics of animals in the kingdom Animalia. It describes 11 animal phyla and the key characteristics used to classify them, including their level of organization, symmetry, germ layers, coelom, and digestive/circulatory systems. Examples are provided of representative species from major phyla like porifera, cnidaria, mollusca, arthropoda, and chordata.
Why do people perceive Mr. Hyde as deformedA He limps.B His sou.pdf
Why do people perceive Mr. Hyde as deformed?
A He limps.
B His soul is deformed by evil.
C He is half blind.
D He suffers from brain damage.
Subject- Literature
-----------------------------------------------------------------
According to Dr. Jekyll, why is Mr. Hyde so much shorter and smaller?
A The evil side of his nature is not as well developed as the good.
B Evil is always less important that good.
C He is physically deformed.
D There is no particular reason; he is just built differently subject-- Literature
Solution
: 1)B. his soul is deformed by evil so he is considered as deformed
2) A. The evil side of his nature is not as well developed as his good side.
What functions are carried out by the human brain Solution .pdf
What functions are carried out by the human brain?
Solution
The brain consists of three major parts: the forebrain (cerebrum and diencephalon),
midbrain (tectum and tegmentum), and hindbrain (pons, cerebellum, medulla). Often the
midbrain, pons, and medulla are referred as the brainstem.
The cerebrum or cortex is the largest part of the human brain and is divided into four
sections or lobes- the frontal lobe, parietal lobe, occipital lobe, and temporal lobe. The functions
of each lobe are:
Frontal Lobe- voluntarymotor activity, speaking ability, thought processes, reasoning, and
problem solving
Parietal Lobe- process sensory information such as temperature, pain, taste and touch; movement
and orientation
The diencephalon contains the epithalamus, thalamus and hypothalamus. Epithalmus
secretes cerebrospinal fluid. Thalamus provides limited sensory awareness of pain, temperature,
touch and pressure. The hypothalamus has important functions such as regulating body
temperature, thirst, foodintake, sleeping rhythms, pituitary glands, emotional and behavioural
patterns.
The cerebellum controls body posture, maintains muscle tone, and coordinate voluntary
muscles. The pons which serves as a bridge between the midbrain and the medulla, controls the
facial and eye muscles. The medulla controls the reflexes for vomiting, swallowing, sneezing,
coughing and hiccupping.
The mid brain is a small constricted portion covered by cerebrum. The parts of tectum
are related to optical activity and auditory functions.
The brain stem is responsible for important life functions such as breathing, heartbeat,
and blood pressure..
More Related Content
Similar to Which of the following is NOT true about protostomes They will beco.pdf
Phylum Cnidaria
1. The document provides an overview of the phylum Cnidaria, which includes jellyfish, corals, and hydroids.
2. Cnidarians are radially or biradially symmetrical and have stinging cells called nematocysts. They exhibit a diploblastic body plan with two tissue layers separated by a gelatinous mesoglea.
3. Many cnidarians alternate between a sessile polyp stage and a motile medusa stage. Reproduction involves external fertilization producing a planula larva.
Coelenterates - classification and gen characters
Coelenterates are diploblastic animals with a radial or biradial symmetry and two tissue layers. They are divided into three phyla - Hydrozoa, Scyphozoa, and Anthozoa - based on their polyp and medusa forms. Hydrozoans have both polyp and medusa stages in their life cycle while scyphozoans are medusa-dominant and anthozoans are polyp-dominant. Cnidarians have stinging cells called nematocysts and a gastrovascular cavity that functions in digestion, circulation, and osmoregulation. They reproduce both sexually and asexually.
Polysiphonia Research Paper
I apologize, upon further reflection I do not feel comfortable providing a full response without the full context and document being reviewed. Summarizing documents requires understanding the full context to avoid misrepresentation. Could you please provide the full document or context for this discussion?
All chordates possess the same four structures in the early embryo. .pdf
All chordates possess four defining structures in early development: a notochord, a dorsal nerve cord, pharyngeal pouches, and an endostyle. These structures are present but often modified in adult vertebrates. Protochordates also possess these four characteristics and can serve as living models for chordate evolution. Deuterostomes are defined by mouth formation after the blastopore and include chordates like lancelets. Chordates are defined by possessing a notochord and other structures. Amniotes are tetrapods that lay eggs with amniotic membranes, including reptiles, birds, and mammals. Humans are deuterostomes, chordates, and amniotes.
Tugas biologi porifera
Sponges are aquatic animals that live mainly in the sea. They have pores and channel systems throughout their bodies and exist in either polyp or sessile forms. Sponges reproduce both sexually, through sperm and egg fusion, and asexually, via budding. They are hermaphrodites that can survive for many years, especially in tropical waters.
Echinodermata Presentation
1) The document is about the phylum Echinodermata, which includes starfish, sea urchins, sea biscuits, and other species.
2) Echinodermata have about 7,000 living species and 13,000 extinct species. They are radially symmetrical as adults but bilaterally symmetrical as larvae.
3) Echinoderms have a unique water vascular system for locomotion, respiration, and feeding. They also have a simple circulatory, excretory, and decentralized nervous system.
General characteristics of algae
This document provides an overview of algae. It describes that algae are thallophytes that contain chlorophyll as their primary photosynthetic pigment and lack a sterile cell covering around their reproductive cells. It classifies algae based on their habitat as aquatic, terrestrial, aerophytic, cryophytic, thermophytic, or of unusual habit. The document further discusses the structure of algal cells, types of algal thallus organization (unicellular, colonial, filamentous, dendroid), pigments, nutrition, reproduction (vegetative and sexual), examples of beneficial and harmful aspects, and references key characteristics of algae.
Biosci 1
The document compares and contrasts the key cellular components and characteristics of prokaryotic and eukaryotic cells. It shows that eukaryotic cells contain structures like a nucleus, mitochondria, chloroplasts, the endoplasmic reticulum, Golgi apparatus and lysosomes that are not found in prokaryotic cells. The table also indicates whether each structure is present (P), absent (A) or present in some cases (PISC) in prokaryotes and eukaryotes.
Electrical Functions Of Plant And Animal Cells
The document discusses the role of anion channels in plant and animal cells. Anion channels play a key role in various physiological functions like cell osmoregulation, cell signaling, plant nutrition, and compartmentalization of metabolites and metal tolerance. In plants, anion channels are found in the plasma membrane, tonoplast, endoplasmic reticulum, mitochondria, and chloroplasts. The plasma membrane channels have been the best characterized. Ion channels work like a switch, opening and closing according to controlling factors, allowing massive ion fluxes when open based on electrochemical gradients. Understanding of ion channels improved with the patch clamp technique and first anion channel structure determination in bacteria in 2002.
Classification
This document provides information about different kingdoms and phyla within the biological classification system. It discusses the key characteristics of bacteria, protists like Chlamydomonas, fungi, various animal and plant phyla including protozoa, porifera, coelentrata, platyhelminthes, nematodes, annelids, molluscs, arthropods, echinoderms, vertebrates like amphibians and fishes. For each group, it outlines their habitat, anatomy, physiology and example organisms. The document aims to describe the defining features of major taxa across the biological world.
1. The reproductive process in the lower plants (mosses, liverworts.pdf
1. The reproductive process in the lower plants (mosses, liverworts, and ferns) can be said to be
analogous to thereproductive process in the amphibians. Explain.
2. Just as a look at embryonic development has helped to demonstrate the close relationship
between chordatesand echinoderms, a look at embryonic development also is key to
understanding the relationship between greenalgae and bryophytes. Explain.
3. The fossil record provides little information about ancient mosses. Do your think that
nonvascular plants couldever have been large-tree-sized plants? Provide evidence from your
investigations to support your answer.
4. Fern antheridia release sperm that then swim toward archegonia in a watery film. The
archegonia release a fluidcontaining chemicals that attract the sperm. This is an example of
chemotaxis, the movement of cells ororganisms in response to a chemical. What is the
significance of chemotaxis to fern (and moss) reproduction?
5. German scientists studied air pollution from heavy metals (cadmium, copper, lead, nickel,
and zinc) by analyzingthe concentration of these metals in moss samples. They compared mosses
collected between 1845 and 1974,which were preserved as herbarium specimens, with mosses
collected in 19991. In general, the 1991 mosses hadlower heavy metal concentrations. These
results were attributed to increased air pollution controls. Based onyour knowledge of the
structure of the moss gametophyte, can you suggest one or more reasons why mosses
areparticularly useful indicators of air pollution?
6. Evidence indicates that the evolution of vascular tissue coincided with a five fold drop in
atmospheric CO2 levelsduring the Carboniferous period, causing global cooling that resulted in
widespread glacier formation. What is apossible explanation for this?
Solution
1. Sexual reproduction in lower plants is carried out through motile sperm with flagella. Water is
required to facilitate reproduction.Haploid gametes are produced by anthridia and archigonia by
mitosis. The sperm released from the anthredia responds to the chemicals released by ripe
archigonia and swim to them in a fim of water and fertilize the egg cell thus producing
zygote.The zygote divides by mitotic division and grows into a sporophyte that is a diploid.
in case of amphibians also external ferilization takes place.The male and female that are
copulating relese their sperm and egg at the same time. A tadpole that is a solely aquatic larval
stage emerges from the egg after the egg is fertilized.
2. In both algae and bryophytes,plant body is thalloid and undifferentiated.Gametophytic
generation is the prominent phase in the life cycle in both groups.Both groups are autotrophic in
nutrition.In both the major photoynthetic pigments are Chlorophl a,b, and carotenes.Vascular
tissue is absent in both groups.Cellulose is chief constituent of cell wall in both
groups.Alternation of generation is present in both groups.
3. They could only have been mat forming on .
Anthoceros
1. Anthoceros is a genus of hornworts that includes about 200 species found worldwide in shady, moist tropical and temperate areas.
2. The plant body is a gametophyte that consists of a small, dark green, lobed thallus containing chloroplasts and rhizoids.
3. Reproduction can occur vegetatively through tubers, gemmae, and persistent apices, or sexually through antheridia that produce sperm and archegonia containing eggs leading to fertilization and formation of a sporophyte.
BIOLOGY- ANIMAL KINGDOM-9 AND 11
The document discusses the characteristics of chordates and their classification. It notes that chordates are bilaterally symmetrical, triploblastic animals that possess a notochord, dorsal nerve cord, and pharyngeal slits. They are divided into three subphyla: urochordata, cephalochordata, and vertebrata. Vertebrates are further divided into 7 classes: cyclostomes, chondrichthyes, osteichthyes, amphibia, reptilia, aves, and mammalia. Each class has distinct characteristics related to their anatomy, physiology, habitat, and life cycle.
Phylum Porifera
This document summarizes key aspects of the phylum Porifera (sponges). It describes their multicellular origins, body structures, cell types, skeleton formation, water circulation, feeding, reproduction, development, and classification. The four classes of sponges - Hexactinellida, Calcarea, Demospongiae, and Sclerospongiae - are introduced along with examples.
Phylum Porifera
This document summarizes key aspects of the phylum Porifera (sponges). It describes their multicellular origins, body structures, cell types, skeleton formation, water circulation, feeding, reproduction, development, and classification. The four classes of sponges - Hexactinellida, Calcarea, Demospongiae, and Sclerospongiae - are introduced along with examples.
PHYLUM PORIFERA PHYLUM COELENTERATA AND PHYLUM ECHINODERMATA.pptx
CHARACTERISTICS OF SPONGES
Cellular level of complexity.
Adults asymmetrical or superficially radially symmetrical.
Adults are sessile, and larvae are motile.
Reproduction sexual and asexual.
A skeleton helps maintain the structure of the sponge.
IMPORTANT CELLS AND FUNCTIONS
Amoebocytes secret spicules – are needle-like spikes
Porocytes – are the cells in the body wall that allow water to flow through the body wall.
Choanocytes – are flagellated cells that help in filter-feeding
TYPES OF CANAL SYSTEMS
Most sponges can be classified based on their type of canal system.
Asconoid
Syconoid
Leuconoid
ASCON
This canal system is the simplest of all three.
Steps of the passage of water through the canal system
(Entry of water- Ostia – Spongocoel- Osculum – Outside)
Sycon type
This type of canal system is more complex compared to the ascon type. EX. Scypha.
Steps of the passage of water through the canal system :
(Entry of water-Ostia- incurrent canal - Prosopyles - Radial canals – Spongocoel- Osculum – Outside)
Leucon type
Most complicated and common sponges
EX. Spongilla
Steps of the passage of water through the canal system
(Entry of water - Ostia- incurrent canal- Prosopyles -Flagellated chambers - Apopyles - excurrent canals -Osculum- Outside)
PHYLUM COELENTERATA
Characteristics of coelenterates
The members are jellyfish, sea anemones, corals, and hydras.
Habitat- both marine and freshwater.
The nervous system and the circulatory system is absent.
Have a mouth surrounded by tentacles, which have stinging cells called nematocysts
Respiration is simple through the gaseous exchange.
Sexual and asexual reproduction (Budding) Ectoderm
Endoderm
mesoglia
THE REPRODUCTIVE STAGES
Alternation of generations in Coelenterates
The medusa stage reproduces sexually by the production of egg and sperm, and it gives rise to the polyp stage.
The polyp stage reproduces asexually by budding and gives rise to the medusa stages in Coelenterates
Echinodermata
Live in shandallow coastal water oceans
Exclusively marine
Unsegmented body
Pentamerous secondary radial symmetry
Unique water vascular system
Word Echinodermata meaning( spiny skin)
ORGANISMS
Sea star
Brittle star
Sand dollars
Sea cucumbers
First phylum(Internal skeleton)
With dermal calcareous ossicles
Some with spines on spicules
Digestive system complete
Locomotion by tube feet and arms
No kidney
Monoecious
Chytridiomycetes
This maybe of help for UG+PG Botany students studying mycology. It's about the general account of class Chytridiomycetes. Good for quick revision and information.
*Critics are very welcomed*
Animal kingdom for + 1 bio part I
This document provides information on the classification of animals. It discusses the different levels of organization in animals from the cellular level to the organ system level. It describes key characteristics used in classification including symmetry, presence of coelom, and segmentation. The major animal phyla are introduced, including key distinguishing features and examples. Classification aims to systematically organize the over one million described animal species based on their fundamental biological characteristics.
Clear concept Of porifera phylum
The document provides information about the phylum Porifera or sponges. It discusses that sponges are the simplest multicellular animals lacking tissues. They live in aquatic environments and have pores, canals and chambers for water circulation. Sponges have soft tissues and mineralized skeletons. They reproduce both sexually and asexually. The document classifies sponges into three classes based on their skeleton type and provides examples of representative sponges. It also describes the anatomy, morphology, life cycles, ecology and geological history of sponges.
Animal Kingdom.pdf
The document discusses the classification and characteristics of animals in the kingdom Animalia. It describes 11 animal phyla and the key characteristics used to classify them, including their level of organization, symmetry, germ layers, coelom, and digestive/circulatory systems. Examples are provided of representative species from major phyla like porifera, cnidaria, mollusca, arthropoda, and chordata.
Similar to Which of the following is NOT true about protostomes They will beco.pdf (20)
All chordates possess the same four structures in the early embryo. .pdf
All chordates possess the same four structures in the early embryo. .pdf
1. The reproductive process in the lower plants (mosses, liverworts.pdf
1. The reproductive process in the lower plants (mosses, liverworts.pdf
PHYLUM PORIFERA PHYLUM COELENTERATA AND PHYLUM ECHINODERMATA.pptx
PHYLUM PORIFERA PHYLUM COELENTERATA AND PHYLUM ECHINODERMATA.pptx
More from fashionbags1
Why do people perceive Mr. Hyde as deformedA He limps.B His sou.pdf
Why do people perceive Mr. Hyde as deformed?
A He limps.
B His soul is deformed by evil.
C He is half blind.
D He suffers from brain damage.
Subject- Literature
-----------------------------------------------------------------
According to Dr. Jekyll, why is Mr. Hyde so much shorter and smaller?
A The evil side of his nature is not as well developed as the good.
B Evil is always less important that good.
C He is physically deformed.
D There is no particular reason; he is just built differently subject-- Literature
Solution
: 1)B. his soul is deformed by evil so he is considered as deformed
2) A. The evil side of his nature is not as well developed as his good side.
What functions are carried out by the human brain Solution .pdf
What functions are carried out by the human brain?
Solution
The brain consists of three major parts: the forebrain (cerebrum and diencephalon),
midbrain (tectum and tegmentum), and hindbrain (pons, cerebellum, medulla). Often the
midbrain, pons, and medulla are referred as the brainstem.
The cerebrum or cortex is the largest part of the human brain and is divided into four
sections or lobes- the frontal lobe, parietal lobe, occipital lobe, and temporal lobe. The functions
of each lobe are:
Frontal Lobe- voluntarymotor activity, speaking ability, thought processes, reasoning, and
problem solving
Parietal Lobe- process sensory information such as temperature, pain, taste and touch; movement
and orientation
The diencephalon contains the epithalamus, thalamus and hypothalamus. Epithalmus
secretes cerebrospinal fluid. Thalamus provides limited sensory awareness of pain, temperature,
touch and pressure. The hypothalamus has important functions such as regulating body
temperature, thirst, foodintake, sleeping rhythms, pituitary glands, emotional and behavioural
patterns.
The cerebellum controls body posture, maintains muscle tone, and coordinate voluntary
muscles. The pons which serves as a bridge between the midbrain and the medulla, controls the
facial and eye muscles. The medulla controls the reflexes for vomiting, swallowing, sneezing,
coughing and hiccupping.
The mid brain is a small constricted portion covered by cerebrum. The parts of tectum
are related to optical activity and auditory functions.
The brain stem is responsible for important life functions such as breathing, heartbeat,
and blood pressure..
Which of the following mediate the interaction of newly synthesized .pdf
Which of the following mediate the interaction of newly synthesized polypeptides with SecYEG
for transport to the periplasm?
A- Sec B
B- Signal recognition particle
C-Trigger factor
D-FtsY
Answer is NOT A
Solution
The answer is B AND D because
it is because of the signal recognition particle receptor which can be either SR or FtsY,the
ribosome secretory protein chain is usually transferred from SRP to the Sec-translocase (in other
words the periplasm)..
what is the food for mature seeds of monocotsA. Nutrient uptake f.pdf
what is the food for mature seeds of monocots?
A. Nutrient uptake from soil
B.cotyledon
C.endosperm
D.Placenta
Solution
Answer is option C. Endosperm.
In monocots, the single cotyledon is called a scutellum; it is connected directly to the embryo via
vascular tissue. Food reserves are stored in the large endosperm..
What are the ways to conceal theft and what are the principles of in.pdf
What are the ways to conceal theft and what are the principles of internal control?
Solution
How theft Is Concealed in the Accounting Records
The initial entry to record the transaction in the
accounting records must be made in 30 days of the
transaction.
Bank reconciliations are most often done at the end of
the month. In the process of doing a bank
reconciliation, funds disbursed by the organization that
were not booked would be revealed.
The initial entry in the accounting system is usually put
into a temporary spot (e.g., suspense account) and then
subsequently moved and placed in a final account that
will flow through to the financial statements.
Internal control is the process designed to ensure reliable financial reporting, effective and
efficient operations, and compliance with applicable laws and regulations. Safeguarding assets
against theft and unauthorized use, acquisition, or disposal is also part of internal control: The
main internal control principles include:
Establish ResponsibilitiesMaintain RecordsInsure Assets by Bonding Key EmployeesSegregate
of DutiesMandatory Employee RotationSplit Related Party ResponsibilityUse Technological
ControlsPerform Regular Independent Reviews.
Using MatLab Implement a bisection root finding method. Your progra.pdf
Using MatLab: Implement a bisection root finding method. Your program should accept two
endpoints, a tolerance limit and a function for input. It should then output the final
approximation and the number of iterations. Make sure that the program checks that the initial
interval is acceptable for this method.
Solution.
UPOSE Biology Entrance Test 2016 of the Q8 In animal reproduction the.pdf
UPOSE Biology Entrance Test 2016 of the Q8 In animal reproduction the formation of gametes
takes place in which following? A. Ovary B. Oviduct Uterus Prostrate gland Which of the
following blood vessels carries deoxygenated blood away from the heart? A. Aorta B.
Pulmonary vein C. Pulmonary artery D. Vena cava Q10. What will happen when plant cells are
placed in pure water? A Sugar will leave the cells by diffusion B water will leave by osmosis C
water will enter by active transport D water will enter by diffusion a11. What is the name given
to a type of cell that lines the trachea (windpipe)? A. Ciliated epithelium B. Lipocyte Erythrocyte
D. Neurone
Solution
Answers :
Q29. The correct answer is B (Thick waxy cutucle) : Presence of thick waxy cuticle is an
adaptation in plants found in xeric environments/dry places such as opuntia. This is an adaptaion
to reduce transpiration/water loss.
Q30. The correct answer is C ( Bacteria) : This explains the phenamenan of mutalism or
symbiotic relationship.Mutualism is an obligatory, positive, interspecific interaction in which
both the interacting partners are strongly benefited from each other. for example, Rhizobium
bacteria lives in the root nodules of leguminous plants which fixes atmospheric nitrogen and
inturn gets nourshment from the plants..
Think of a freshwater pond in Idaho. Name one organism that could li.pdf
Think of a freshwater pond in Idaho. Name one organism that could live in this pond in each of
the following classification groups
Domain Eukarya Kingdom Protista:
Domain Eukarya Kingdom Plantae:
Domain Eukarya Kingdom Animalia:
Domain Eukarya Kingdom Fungi:
Solution
Firstly, it is important to note that a pond ecosystem is a freshwater ecosystem. Thus all the
organisms living in it will be having a freshwater pond ecological-niche.
Since a pond is not deep, so the sunlight can easily penetrate the water and could reach to the
bottom of the pond and can support freshwater aquatic I.e. plant life. Pond ecosystem also
supports growth of fungi, animals, and protists.
Now in the given question it is asked to write about main eukarya kingdom protists, which mean
that these are those eukaryotes that lack multicellular stage or are not plantae, animals or fungi.
Example of it living in pond is amoeba and paramecium (they are animal like freshwater
protists), whereas chlorophyll and diatoms are plant like protists.
Example of domain eukaryotes kingdom plantae are: Bryophyta and mosses.
Example of eukaryotes kingdom animals: zooplanktons and insects.
Example of eukarya kingdom fungi: aquaphila and Jeranium.
The term stationary data means thata. there is an increasing l.pdf
The term \"stationary data\" means that
a. there is an increasing linear trend over time
b. the fitted line goes through the origin
c. the mean is constant
d. there is no change in the data
Solution
stationary means that the distribution does not change with time, which implies that mean is
constant.
The data itself is not constant!.
The social bacteria M. xanthus coordinate group attacks on other bac.pdf
The social bacteria M. xanthus coordinate group attacks on other bacteria, rapidly consuming
entire colonies of prey. Researchers may be interested in many different aspects of this behavior.
Recall Tinbergen\'s classification of questions about behavior (click here to go back to page 2
and review). Which of the following hypotheses suggests the potential ADAPTIVE VALUE of
such a coordinated attack?
1.M. xanthus use chemical signals that are exchanged between neighbors to coordinate their
attacks.
2. Coordinated attacks are unique among bacteria, having evolved in only M. xanthus.
3. M. xanthus that engage in coordinated attacks feed more efficiently and reproduce faster than
those that don\'t.
4. M. xanthus only engage in coordinated attacks if they have reached a certain, more mature,
developmental stage.
Solution
Answer : 3
M. xanthus that engage in coordinated attacks feed more efficiently and reproduce faster than
those that don\'t..
Step 1 trace the development of the male gamete Procedure 1 Time to .pdf
Step 1 trace the development of the male gamete Procedure 1 Time to Trace In this exercise, you
will trace the male and female gametes from their production in the gonads to the point at which
they meet in the uterine tube, where fertilization takes place. Step 1: Male Gamete Trace the
male gamete from its earliest stage--the spermatogonium in the seminiferous tubule--through the
stages of spermatogenesis to a mature sperm, and then through the male reproductive tract until it
exits the body and enters the uterine tube of the female reproductive tract. Trace the pathway
using Figure 16.14, and also fill in the space below. Start: spermatogonium FIGURE 16.14 Male
reproductive tract End: Uterine tube 16 Reproductive systems I UNIT 16 I 419
Solution
1: The germ cells of seminiferous tubules present near the capsule serve as spermatogonia which
divide and produce more cells by mitosis. Some of these new cells serve as primary
spermatocytes that undergo meiosis; meiosis I produces two secondary spermatocytes (n) which
is followed by meiosis II that produces four spermatids. The spermatids enter the epidydimis
where they are stored and capacitated. Vas deferens serves to transports mature sperm to the
urethra in preparation for ejaculation. Urethra serves to ejaculalte the semen during intercourse
(prostetic urethra--> membranous urethra-->penial urethra--> external urethral meatus)
2: During foetal development, few germinal cells in ovary differentiate and divide mitotically to
produce oogonia which in turn divide to produce diploid primary oocyte. In follicular prenatal
phase, the primary oocytes start first meiotic division but are transitionally suspended into
prophase stage of meiosis I. After puberty, primary oocyte resumes the division and completion
of first meiotic division produce one secondary oocyte and one polar body. The secondary
oocyte is released from ovary to fallopian tube where it fuses with sperm and completes the
meiosis II. If fertilization does not occur, the degeneration of corpus luteum cause menstruation
and the secondary oocyte is expelled out through vag alog with endometrium of uterus. (ovary-->
fallopian tube-->uterus--> vag)..
So this is Enterobacter sp. please tell ne the cell shape, cell arra.pdf
So this is Enterobacter sp. please tell ne the cell shape, cell arrangements, and the color. thank
you!
71, ..art.. .. *-. i
Solution
Answer:
Enterobacter is the genus of bacteria belongs to enteric bacteria (Enterobacteriaceae), are non-
spore forming, gram negative rods which are categorized as facultative anaerobes. Enterobacter
sp. are come in the category of non-fecal coliforms (colifoms but not present in feces). There are
several reported pathogenic Enterobacter sp. and some Enterobacter sp. are reported as non-
pathogenic.
Cell shape : Straight rod
Cell arrangements : Single
Color : They are gram negative, thus observed as pink colour cells (due to safranin dye) after
gram staining..
Phagocytosis pinocytosis receptor-mediated endocytosis secondary Cl.pdf
Phagocytosis pinocytosis receptor-mediated endocytosis secondary Clive transport Passive
membrane transport processes include movement of a substance down its concentration gradient
movement of water from an area of low concentration to an area of high concentration
consumption of ATP the use of transport proteins Peroxisomes are also called microbodies, and
contain acid hydrolases are able to detoxify substances by enzymatic action o function to digest
particles ingested by endocytosis sometimes function as secretary vesicles DNA replication can
also be called mitosis is spontaneous, not requiring enzyme action taken place during interphase
of the cell cycle occurs only in translationally active areas In the maintenance of the cell resting
membrane potential extracellular sodium levels are high cells are more permeable to Na+ than
K+ the steady state involves only passive processes in all cells the inside of the cell is positive
relative to its outside Which of the following does not serve as a signal for cell division?
repressor genes joining of cyclins and Cakes contact inhibition surface-to-volume ratio
Solution
38. (a)
39. (D) Phospholipids
40. (D) Mitosis always results in cell replication
41.(a) melanin is a pigment.
The oxygen revolution facilitated by cyanobacteria had an enormou.pdf
The \"oxygen revolution\" facilitated by cyanobacteria had an enormous impact on life in our
planet. As a result, the rising concentration of atmospheric oxygen wiped out the prokaryotic
organisms that flourished in the CO2 rich environment: none of these early prokaryotic
organisms has survived to present times. True False Kuru is caused by a neurotropic virus that
\"homes\" in the brain cells. This virus belongs to the same family of viruses that cause mad cow
disease, and it is one of the smallest life forms\" known to science. True False Lipid bilayers can
only be synthetized by biological organisms. This is supported by the rise of internal
compartmentalization seen in eukaryotic organisms. It is thought that the formation of internal
organelles in eukaryotic cells resulted from the invagination of the external cell membrane in
prokaryotic cells True False Abiogenesis is the hypothesis that life exists throughout the
universe, distributed by meteorites, planetoids and asteroids. The theory of abiogenesis proposes
that life in this planet arouse from extremophile bacteria that came from outer space trapped in
interstellar debris. True False The basic elements that are the building blocks of life in this planet
are only found in living organisms; hence, these are only of biological origin. This contradicts
the theory of abiogenesis. True False DNA is the only known source of genetic information/code
for biological organisms/systems in this planet. True False the Cretaceous mass extinction is
thought to have occurred as a result of a massive meteorite impact near the Yucatan peninsula.
The impact crater (recently located) together with the iridium deposits in the days of the planet,
supports this hypothesis. True False Reproduction, mutation, use of energy and evolution are
characteristics only of living things. True False
Solution
28)
The micro fossils discovered in the rocks more than 3.5 billion years old were the single celled
prokaryotic organisms resembling the modern bacteria. These must have evolved in absence of
oxygen. Over time, photosynthetic organisms (cyanobacteria) might have evolved increasing the
concentration of oxygen in the atmosphere. This has caused some organisms to extinct because
they could not tolerate the high oxygen levels and some organisms to develop more effective
metabolic pathways to metabolize the oxygen. The statement is true.
29)
Kuru is a neurodegenerative disease caused by abnormally folded protein agents called prions.
Mad cow disease or bovine spongiform encephalopathy or mad cow disease is also caused by a
misfolded protein agent called prion. The given statement is true.
30)
The prokaryotic cells evolved earlier were started to develop internal membranes some 2 billion
years ago, due to which the evolution of eukaryotic cells had took place. The eukaryotic
organelles like mitochondria and chloroplast resemble the prokaryotic cells. This has happened
due to establishment of symbiotic relationship bet.
In your own words how you would describe the function of the followi.pdf
In your own words how you would describe the function of the following organelles?
What are the function of the lysosome?
What are the function of the rough and smooth endoplasmic reticulum?
What are the function of the ribosomes?
What are the functions of the mitochondria?
What are the functions of the cell membrane?
Solution
Lysosome:
Rough Endoplasmic reticulum:
Smooth Endoplasmic reticulum:
Ribosome: these are very important organelles which are sites for protein synthesis i.e.
translation.
Mitochondria:.
Please explain how(4.17) If we leave out the low outlier, the cor.pdf
Please explain how(4.17) If we leave out the low outlier, the correlation for the remaining 14
points in Figure 4.7 is closest to
Please explain howA.0.9.B.-0.9.C.0.1. (4.17) If we leave out the low outlier, the correlation for
the remaining 14 points in Figure 4.7 is closest to Please explain how
Solution
Answer is (A)0.9.
On the Isle of Man off the coast of Ireland, a curious cat referred .pdf
On the Isle of Man off the coast of Ireland, a curious cat referred to as a manx cat was described
in 1845. It had long hind legs and a short tail. Further work showed that the manx characteristics
were the result of a dominant M allele at a single locus. An MM zygote would not survive, but
Mm genotypes produced the manx characteristics. Imagine a scenario where the M allele arises
by mutation on the Isle of Man. Explain how genetic drift could cause the M allele to reach a
relatively high frequency (freq(M) > 0.25), even though it has harmful effects on fitness.
Solution
Genetic drift is the force of evolution which causes separation of individuals of a species due to
geographical isolation. This causes these organisms to survive as a separate species and evolve at
their respective geographical locations.
According to the information, the dominant allele M is lethal to the organisms. Inspite of this
fact, the frequency of allele M is increasing on the geographical area separated due to genetic
drift. This suggests that the individuals on this geographical area might possess any kind of
adaptability soleley due to presence of this dominant M allele. Nevertheless, it remains highly
unlikely that the homozygous MM individuals will survive even on this island due to biological
failures. However, individuals with heterozygous Mm genotype must have biological benefits
against any stressor/stimulus at this new location. This benefit must be promoting these
individuals to survive better than any of the individuals with homozyogous genotype.
Thus, this particular case of fixation of higher allele frequency of geotype M in heterozygous
conditions deviates from the Hardy-Weinberg law, hence there are individuals with relatively
higher frequency of allele M..
John has created an incredibly successful wine operation in the Nort.pdf
John has created an incredibly successful wine operation in the Northeast. He has vineyard lands
along the Seneca and Cayuga wine trails in the Finger Lakes of New York. Many of his wineries
are considered some of the best on the East Coast, and one of them, “Jennifer T” was recently
named winery of the year by Wine Spectator magazine. In all, there are 5 different wineries
operations each in a different corporation. All 5 are in a separate S-Corporation with all the stock
owned by the parent Company Petosa Vineyards Inc, also an S-Corporation. John and his wife
Jennifer own 75% of the stock of the parent Company which means they own 75% of all of the
value of the entities. Jennifer and John are each other’s second marriage. John has three children
from his prior marriage and Jennifer has 2 children from her previous marriage. John and
Jennifer’s family have been an important part of the Company’s growth. John’s brother, Tom
became a partner in the business providing much needed capital when the wineries were in a
growth stage. Tom owns 20% of the remaining stock and he has 2 children who work at the
winery on weekends doing wine tasting, but have other jobs during the week. Jennifer’s sister
Karen owns the remaining 5% of the outstanding shares. Karen has 3 children, none of which are
involved in the wine operations. However, Karen has one son, Stephen, who has an engineering
degree from Georgia Tech and has been helpful in development of the winery’s bio-dynamic
farming operations. Stephen has expressed an interest in becoming a bigger part of the overall
operations as he enjoys the laid back lifestyle the winery offers. Jennifer has been the driving
force behind the winery’s commitment to bio-dynamic, organic farming. She has been in charge
of the vineyard operations and overall marketing. Jennifer’s two sons have also been very
involved in the winery operations. Albert received his degree from Syracuse University in
Economics and Entrepreneurship. After a few summers working as a landscaper, he learned that
he loved to work the land and has been the one to implement his mother’s organic farming
techniques at the various vineyards. Nino graduated from Syracuse University with a degree in
information studies. He has been in charge of the information systems for the wineries. He has
also been responsible for the social media and other electronic marketing methods that have
catapulted the growth in the company’s exports to other states and overseas markets. Only
Christopher, of John’s three children has been involved in the wineries. Chris, a graduate of SU’s
Whitman School of Management with a degree in accounting and the Syracuse College of Law,
has been the CFO of the Company and the lead wine maker following in his father’s footsteps. It
has been Chris’ adept touch and penchant for knowing just when to harvest the grapes that has
been crucial to the recent accolades received by various wine rating agencies. Jay and Allyson
are John’s othe.
In a survey conducted in November 2002 of 1400 international bus.pdf
In a survey conducted in November 2002 of 1400 international business travelers concerning in-
flight service over the past few years, the following information was obtained:
Comments on Quality of Service | Respondents
Has remained the same from 2 yrs ago | 630
Has diminished over that time frame | 406
Has improved over that time frame | 336
Wasn\'t sure | 28
If a person in the survey is chosen at random, what is the probability that he or she has rated in-
flight service as:
Remaining the same or improved over the time frame in question?
Remaining the same or diminished over the time frame in question?
In a survey conducted in November 2002 of 1400 international business travelers concerning in-
flight service over the past few years, the following information was obtained:
Comments on Quality of Service | Respondents
Has remained the same from 2 yrs ago | 630
Has diminished over that time frame | 406
Has improved over that time frame | 336
Wasn\'t sure | 28
If a person in the survey is chosen at random, what is the probability that he or she has rated in-
flight service as:
Remaining the same or improved over the time frame in question?
Remaining the same or diminished over the time frame in question?
In a survey conducted in November 2002 of 1400 international business travelers concerning in-
flight service over the past few years, the following information was obtained:
Comments on Quality of Service | Respondents
Has remained the same from 2 yrs ago | 630
Has diminished over that time frame | 406
Has improved over that time frame | 336
Wasn\'t sure | 28
If a person in the survey is chosen at random, what is the probability that he or she has rated in-
flight service as:
Remaining the same or improved over the time frame in question?
Remaining the same or diminished over the time frame in question?
Solution.
If a plant is test-crossed which of the following genes are linked.pdf
If a plant is test-crossed which of the following genes are linked?
A. Flower color and height
B. Flower color and flower placement
C. Flower placement and height
D. None of these genes appear to be linked phenotype Tall/purple/axial Tall/white/axial Short/ ur
Short/white/axial Short/white/terminal Short/purple/terminal Tall/white/terminal
Tall/purple/terminal Progeny number 3709 70 2034 2507 39 72 3507
Solution
The linked in a cross table is observable by parent genotypes.
The parental genotypes are always those who are in maximum numbers.
The parental are Tall/ purple / axial and Tall purple terminal are dominant [high number].
Short/ white/ terminal and short white axial are recessive parents [less number]
As we can see in both parents only axial and terminal are change, other two characters height and
flower color are not changing. Therefore, they are tightly arrange and called as linked.
The option A is correct..
More from fashionbags1 (20)
Why do people perceive Mr. Hyde as deformedA He limps.B His sou.pdf
Why do people perceive Mr. Hyde as deformedA He limps.B His sou.pdf
What functions are carried out by the human brain Solution .pdf
What functions are carried out by the human brain Solution .pdf
Which of the following mediate the interaction of newly synthesized .pdf
Which of the following mediate the interaction of newly synthesized .pdf
what is the food for mature seeds of monocotsA. Nutrient uptake f.pdf
what is the food for mature seeds of monocotsA. Nutrient uptake f.pdf
What are the ways to conceal theft and what are the principles of in.pdf
What are the ways to conceal theft and what are the principles of in.pdf
Using MatLab Implement a bisection root finding method. Your progra.pdf
Using MatLab Implement a bisection root finding method. Your progra.pdf
UPOSE Biology Entrance Test 2016 of the Q8 In animal reproduction the.pdf
UPOSE Biology Entrance Test 2016 of the Q8 In animal reproduction the.pdf
Think of a freshwater pond in Idaho. Name one organism that could li.pdf
Think of a freshwater pond in Idaho. Name one organism that could li.pdf
The term stationary data means thata. there is an increasing l.pdf
The term stationary data means thata. there is an increasing l.pdf
The social bacteria M. xanthus coordinate group attacks on other bac.pdf
The social bacteria M. xanthus coordinate group attacks on other bac.pdf
Step 1 trace the development of the male gamete Procedure 1 Time to .pdf
Step 1 trace the development of the male gamete Procedure 1 Time to .pdf
So this is Enterobacter sp. please tell ne the cell shape, cell arra.pdf
So this is Enterobacter sp. please tell ne the cell shape, cell arra.pdf
Phagocytosis pinocytosis receptor-mediated endocytosis secondary Cl.pdf
Phagocytosis pinocytosis receptor-mediated endocytosis secondary Cl.pdf
The oxygen revolution facilitated by cyanobacteria had an enormou.pdf
The oxygen revolution facilitated by cyanobacteria had an enormou.pdf
In your own words how you would describe the function of the followi.pdf
In your own words how you would describe the function of the followi.pdf
Please explain how(4.17) If we leave out the low outlier, the cor.pdf
Please explain how(4.17) If we leave out the low outlier, the cor.pdf
On the Isle of Man off the coast of Ireland, a curious cat referred .pdf
On the Isle of Man off the coast of Ireland, a curious cat referred .pdf
John has created an incredibly successful wine operation in the Nort.pdf
John has created an incredibly successful wine operation in the Nort.pdf
In a survey conducted in November 2002 of 1400 international bus.pdf
In a survey conducted in November 2002 of 1400 international bus.pdf
If a plant is test-crossed which of the following genes are linked.pdf
If a plant is test-crossed which of the following genes are linked.pdf
Recently uploaded
How to deliver Powerpoint Presentations.pptx
"How to make and deliver dynamic presentations by making it more interactive to captivate your audience attention"
Wound healing PPT
This document provides an overview of wound healing, its functions, stages, mechanisms, factors affecting it, and complications.
A wound is a break in the integrity of the skin or tissues, which may be associated with disruption of the structure and function.
Healing is the body’s response to injury in an attempt to restore normal structure and functions.
Healing can occur in two ways: Regeneration and Repair
There are 4 phases of wound healing: hemostasis, inflammation, proliferation, and remodeling. This document also describes the mechanism of wound healing. Factors that affect healing include infection, uncontrolled diabetes, poor nutrition, age, anemia, the presence of foreign bodies, etc.
Complications of wound healing like infection, hyperpigmentation of scar, contractures, and keloid formation.
Beyond Degrees - Empowering the Workforce in the Context of Skills-First.pptx
Iván Bornacelly, Policy Analyst at the OECD Centre for Skills, OECD, presents at the webinar 'Tackling job market gaps with a skills-first approach' on 12 June 2024
HYPERTENSION - SLIDE SHARE PRESENTATION.
IT WILL BE HELPFULL FOR THE NUSING STUDENTS
IT FOCUSED ON MEDICAL MANAGEMENT AND NURSING MANAGEMENT.
HIGHLIGHTS ON HEALTH EDUCATION.
Mule event processing models | MuleSoft Mysore Meetup #47
Mule event processing models | MuleSoft Mysore Meetup #47
Event Link:- https://meetups.mulesoft.com/events/details/mulesoft-mysore-presents-mule-event-processing-models/
Agenda
● What is event processing in MuleSoft?
● Types of event processing models in Mule 4
● Distinction between the reactive, parallel, blocking & non-blocking processing
For Upcoming Meetups Join Mysore Meetup Group - https://meetups.mulesoft.com/mysore/YouTube:- youtube.com/@mulesoftmysore
Mysore WhatsApp group:- https://chat.whatsapp.com/EhqtHtCC75vCAX7gaO842N
Speaker:-
Shivani Yasaswi - https://www.linkedin.com/in/shivaniyasaswi/
Organizers:-
Shubham Chaurasia - https://www.linkedin.com/in/shubhamchaurasia1/
Giridhar Meka - https://www.linkedin.com/in/giridharmeka
Priya Shaw - https://www.linkedin.com/in/priya-shaw
Jemison, MacLaughlin, and Majumder "Broadening Pathways for Editors and Authors"
Jemison, MacLaughlin, and Majumder "Broadening Pathways for Editors and Authors"National Information Standards Organization (NISO)
This presentation was provided by Racquel Jemison, Ph.D., Christina MacLaughlin, Ph.D., and Paulomi Majumder. Ph.D., all of the American Chemical Society, for the second session of NISO's 2024 Training Series "DEIA in the Scholarly Landscape." Session Two: 'Expanding Pathways to Publishing Careers,' was held June 13, 2024.RHEOLOGY Physical pharmaceutics-II notes for B.pharm 4th sem students
Physical pharmaceutics notes for B.pharm students
BÀI TẬP DẠY THÊM TIẾNG ANH LỚP 7 CẢ NĂM FRIENDS PLUS SÁCH CHÂN TRỜI SÁNG TẠO ...
BÀI TẬP DẠY THÊM TIẾNG ANH LỚP 7 CẢ NĂM FRIENDS PLUS SÁCH CHÂN TRỜI SÁNG TẠO ...Nguyen Thanh Tu Collection
https://app.box.com/s/qhtvq32h4ybf9t49ku85x0n3xl4jhr15LAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UP
This Dissertation explores the particular circumstances of Mirzapur, a region located in the
core of India. Mirzapur, with its varied terrains and abundant biodiversity, offers an optimal
environment for investigating the changes in vegetation cover dynamics. Our study utilizes
advanced technologies such as GIS (Geographic Information Systems) and Remote sensing to
analyze the transformations that have taken place over the course of a decade.
The complex relationship between human activities and the environment has been the focus
of extensive research and worry. As the global community grapples with swift urbanization,
population expansion, and economic progress, the effects on natural ecosystems are becoming
more evident. A crucial element of this impact is the alteration of vegetation cover, which plays a
significant role in maintaining the ecological equilibrium of our planet.Land serves as the foundation for all human activities and provides the necessary materials for
these activities. As the most crucial natural resource, its utilization by humans results in different
'Land uses,' which are determined by both human activities and the physical characteristics of the
land.
The utilization of land is impacted by human needs and environmental factors. In countries
like India, rapid population growth and the emphasis on extensive resource exploitation can lead
to significant land degradation, adversely affecting the region's land cover.
Therefore, human intervention has significantly influenced land use patterns over many
centuries, evolving its structure over time and space. In the present era, these changes have
accelerated due to factors such as agriculture and urbanization. Information regarding land use and
cover is essential for various planning and management tasks related to the Earth's surface,
providing crucial environmental data for scientific, resource management, policy purposes, and
diverse human activities.
Accurate understanding of land use and cover is imperative for the development planning
of any area. Consequently, a wide range of professionals, including earth system scientists, land
and water managers, and urban planners, are interested in obtaining data on land use and cover
changes, conversion trends, and other related patterns. The spatial dimensions of land use and
cover support policymakers and scientists in making well-informed decisions, as alterations in
these patterns indicate shifts in economic and social conditions. Monitoring such changes with the
help of Advanced technologies like Remote Sensing and Geographic Information Systems is
crucial for coordinated efforts across different administrative levels. Advanced technologies like
Remote Sensing and Geographic Information Systems
9
Changes in vegetation cover refer to variations in the distribution, composition, and overall
structure of plant communities across different temporal and spatial scales. These changes can
occur natural.
Level 3 NCEA - NZ: A Nation In the Making 1872 - 1900 SML.ppt
The History of NZ 1870-1900.
Making of a Nation.
From the NZ Wars to Liberals,
Richard Seddon, George Grey,
Social Laboratory, New Zealand,
Confiscations, Kotahitanga, Kingitanga, Parliament, Suffrage, Repudiation, Economic Change, Agriculture, Gold Mining, Timber, Flax, Sheep, Dairying,
Philippine Edukasyong Pantahanan at Pangkabuhayan (EPP) Curriculum
(𝐓𝐋𝐄 𝟏𝟎𝟎) (𝐋𝐞𝐬𝐬𝐨𝐧 𝟏)-𝐏𝐫𝐞𝐥𝐢𝐦𝐬
𝐃𝐢𝐬𝐜𝐮𝐬𝐬 𝐭𝐡𝐞 𝐄𝐏𝐏 𝐂𝐮𝐫𝐫𝐢𝐜𝐮𝐥𝐮𝐦 𝐢𝐧 𝐭𝐡𝐞 𝐏𝐡𝐢𝐥𝐢𝐩𝐩𝐢𝐧𝐞𝐬:
- Understand the goals and objectives of the Edukasyong Pantahanan at Pangkabuhayan (EPP) curriculum, recognizing its importance in fostering practical life skills and values among students. Students will also be able to identify the key components and subjects covered, such as agriculture, home economics, industrial arts, and information and communication technology.
𝐄𝐱𝐩𝐥𝐚𝐢𝐧 𝐭𝐡𝐞 𝐍𝐚𝐭𝐮𝐫𝐞 𝐚𝐧𝐝 𝐒𝐜𝐨𝐩𝐞 𝐨𝐟 𝐚𝐧 𝐄𝐧𝐭𝐫𝐞𝐩𝐫𝐞𝐧𝐞𝐮𝐫:
-Define entrepreneurship, distinguishing it from general business activities by emphasizing its focus on innovation, risk-taking, and value creation. Students will describe the characteristics and traits of successful entrepreneurs, including their roles and responsibilities, and discuss the broader economic and social impacts of entrepreneurial activities on both local and global scales.
BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...
BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...Nguyen Thanh Tu Collection
https://app.box.com/s/y977uz6bpd3af4qsebv7r9b7s21935vdRecently uploaded (20)
Beyond Degrees - Empowering the Workforce in the Context of Skills-First.pptx
Beyond Degrees - Empowering the Workforce in the Context of Skills-First.pptx
Mule event processing models | MuleSoft Mysore Meetup #47
Mule event processing models | MuleSoft Mysore Meetup #47
Jemison, MacLaughlin, and Majumder "Broadening Pathways for Editors and Authors"
Jemison, MacLaughlin, and Majumder "Broadening Pathways for Editors and Authors"
SWOT analysis in the project Keeping the Memory @live.pptx
SWOT analysis in the project Keeping the Memory @live.pptx
RHEOLOGY Physical pharmaceutics-II notes for B.pharm 4th sem students
RHEOLOGY Physical pharmaceutics-II notes for B.pharm 4th sem students
BÀI TẬP DẠY THÊM TIẾNG ANH LỚP 7 CẢ NĂM FRIENDS PLUS SÁCH CHÂN TRỜI SÁNG TẠO ...
BÀI TẬP DẠY THÊM TIẾNG ANH LỚP 7 CẢ NĂM FRIENDS PLUS SÁCH CHÂN TRỜI SÁNG TẠO ...
LAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UP
LAND USE LAND COVER AND NDVI OF MIRZAPUR DISTRICT, UP
Level 3 NCEA - NZ: A Nation In the Making 1872 - 1900 SML.ppt
Level 3 NCEA - NZ: A Nation In the Making 1872 - 1900 SML.ppt
Philippine Edukasyong Pantahanan at Pangkabuhayan (EPP) Curriculum
Philippine Edukasyong Pantahanan at Pangkabuhayan (EPP) Curriculum
BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...
BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...
REASIGNACION 2024 UGEL CHUPACA 2024 UGEL CHUPACA.pdf
REASIGNACION 2024 UGEL CHUPACA 2024 UGEL CHUPACA.pdf
Which of the following is NOT true about protostomes They will beco.pdf
- 1. Which of the following is NOT true about protostomes? They will become mollusks, annelids, and arthropods. They are types of advanced invertebrates. The blastopore during embryonic development becomes the anus. They form true coelom. The mesoderm splits in order to form the coelom. Which characteristic is shared by both cnidarians and flatworms? Dorsoventrally flattened bodies. Flame cells. Radially symmetry A digestive system with a single opening. Both a and D Which of the following features are unique to echinoderms? They are bilaterally symmetrical as larvae, but undergo radial adults. They possess an endoskeleton of dermal plates beneath the skin The coelom is transformed into a unique water- vascular system that uses hydraulic power to operate many tiny feet. They exhibit protosomal growth pattern. Many have miniature jaw like pincers on their body surface often on stalks and sometimes bearing poison glands. What confines bryophytes to wet areas? They have no roots. They have no conducting vessels. They have no waterproof coating. They have swimming sperm. A, B, and D only. Solution C. The blastopore during embryonic development becomes the anus in case of deuterostomes and not in case of protostomes. D. Both cnidarians and flatworms have digestive system with a single opening. Whereas, flatworms have dorsoventrally flat body and flame cells, and cnidarians have radial symmetry. A, B, C and E are unique features of echinoderms. D. Bryophytes are confined to wet areas because they have swimming sperms.