8- Which of the following statements are FALSE about the phylum Chorda.pdf
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8. Which of the following statements are FALSE about the phylum Chordata. a. All chordates have a postanal tal at some stage in life. b. All chordates have pharyngeal slits that wit develop into ancther structure. c. In all chordates, the notochord is replaced by the soinal column during development. e. Both B and C are FALISE 9. Deuterostomes exhibit. a. Radial cleavage b. The blastopore becomes an anus c. Diploblastic germ layers d. Both A and B e. A , B , and C are all correct 10. Damage to its flagellum would prevent a choanocyte from a. circulating water through the sponge. b. stinging and capturing prey. c. secreting spongin to form the spenge body. d. producing the supportive spicules. 11. How could a biologist distingaish an acoelomate flatworm from a free-living nematode? a. The acoelomate worm would be solid throughout since it lacks a true gut: b. The acoelomate worm would havo a nervous system. c. The nematode would have a more primitive gut and nervous system. d) Only the acoelomate is triploblastic. 12. Linnaeus lumped all of the worm-like animals into the category Vermes (Vermis is Latin for worm). is this a vald classification scheme? a. No, because some worms are protists: b. Yes, because all worms are members of the same kingdom and phylum. c. Yes, because all worm-like animals are more closely related to each other than they are to other animals due to the evolutionary history of this body plan. d. No, because the worm-like body plan has appeared many times through evolutionary history and is not a useful trait for classification. 13. Which of the following terms is mismutched with its meaning or characteristics? a. Diploblastic-ectoderm and mesoderm b. Triploblastic-ectoderm, mesoderm, and endoderm c. Porifera-lacks symmetry no tissues d. Chordate-an animal with notochord 14. The most diverse of the four eukaryotic kingdoms is the: a. Protista Kingdom. b. Bacteria Kingdom. c. Plantae Kingdom. d. Animalia kingdom. 15. Of the folowing features, which is the most widely shared in the animal kingdom? a. protortome development b. radial cleavare c. inolring of a cuticle or exoskieleton d. a bady gian with.iymmetry e. a triploblastic embryo.
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21- What are arbuscles- a- sexual structures of basidiomycetes b- sexu.pdf
21. What are arbuscles? a. sexual structures of basidiomycetes b. sexual structures of
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above 22. In which group would you expect budding cells? a. Ascomycota b. Basidiomycota c.
Zygomycota d. Glomeromucata e. all of the above 23. What is one of the main differences
between mosses and ferns? a. In mosses, the gametophyte dominates. b. In mosses, the
sporophyte dominates. c. In ferns, the two generations remain fused together. d. Ferns have a
protonema stage. e. Moss sperms from the male gametophyte have to swim to the female
gametophyte. 24. What do conifers have? a. pollen, but no seeds b. embryos but no microspores
c. seeds but no fruits d. cones but no ovules e. none of the above 25. Which of the following is
not correct for mosses? a. They have an alternation of generations. b. They are vascular plants. c.
The gametophyte is the dominant generation. d. The gametophyte develops from a protonema. e.
Female gametophytes produce archegonia. 26. Anthers are found in which of the following
groups? a. monocots b. mosses c. ferns d. Svcadaphyta e. all of the above 27. Which of the
following groups have vascular tissue? a. monocots b. horsetails c. ferns d. Gveadaphyta e. all of
the above 28. Which of the following would you expect to find in an octopus? a. The mouth
forms after the blastopore develops into the anus. b. radial cleavage c. There is no mesoderm d.
determinate cleavage e. an incomplete digestive system 29. In which group would you expect to
find a medusa stage? a. Polychaeta b. Cnidaria c. centipedes d. Gastropoda e. tapeworms 30.
Which characters are shared by echinoderms and corals? a. no excretory system b. radial
symmetry c. no respiratory system d. no head e. all of the above 31. Most animals are a. both
triploblastic and with bilateral symmetry. b. both triploblastic and with radial symmetry. c. both
diploblastic and with radial symmetry. d. both diploblastic and with bilateral symmetry. e. none
of the above 32. Protostomes have both a. radial and spiral cleavage. b. determinate and spiral
cleavage. c. determinate and radial cleavage. d. indeterminate and spiral cleavage. e. triploblastic
and radial cleavage. 33. Which of the following would you not find in insects? a. Malpighian
tubules b. two pairs of antennae c. compound eyes d. a tracheal system e. an open circulatory
system 34. Spiders differ from insects by having a. segmentation b. an open circulatory system c.
an abdomen d. an exoskeleton e. book lungs 35. What is the gas exchange system in insects
called? a. Malpighian tubules b. book lungs c. external gills d. tracheal system e. complete
metamorphosis 36. Insects have the same number of antennae as a. spiders b. millipedes c.
centipedes d. crustaceans e. both b and c 37. Which arthropod groups have more legs than
insects? a. spiders b. crustaceans c. centipedes d. millipedes e. all of the above 38. In order to
become fully .
1- During your semester abroad you are taking part in a field study in.pdf
1. During your semester abroad you are taking part in a field study in a tropical localtion.
Although the area is in the tropics you are afforded indoor plumbing and electricity during your
stay. However, because you are at risk to specific parasitic roundworms your instructor explains
how to stay safe from infection. Which of the following statements will help you avoid
infection?
Multiple Choice
a. Mosquito repellent should be worn during the day and mosquito netting should be used while
sleeping to protect you from Wuchereria bancrofti .
b. Mosquito repellent should be worn during the day and mosquito netting should be used while
sleeping to protect you from Necator americanus .
c. Shoes (no open-toed shoes or sandals) or boots should be worn to prevent infection by
Wuchereria bancrofti .
d. Shoes (no open-toed shoes or sandals) or boots should be worn to prevent infection by
Necator americanus .
2. Most cnidarians possess two distinct body forms: the polyp, which is _________blank, and the
medusa, which is _________blank.
Multiple Choice
a. sessile; motile.
b. asymmetric; radially symmetric.
c. poisonous; nonpoisonous.
d. diplobastic; triploblastic.
3. Insects - of the subphylum Hexapoda - are remarkable for how successful they have been and
for their diversity. Which of these are key traits that help the insects, in particular, be so
widespread, diverse, and in so many ecological roles? true or false
a. Most insects have wings. True or False
b. Most insects molt their hard exoskeleton. True or False
c. Insect mouthparts are specialized in many different forms. True or False
d. Insects are parasites so they benefit from the work and nutrition of other animals. True or
False
e. The diets of insects, overall, are extremely varied, so different insects can specialize in almost
any food source. True or False
4. Your lab group is presented with an unknown mollusk. Your task is to assign it to one of the
major taxonomic classes. Which characteristic would allow you to say definitively that it belongs
to the Class Cephalopoda?
Multiple Choice
a. Mantle.
b. Gills.
c. Nephridia.
d. A closed circulatory system.
5. Jellyfish sting through specialized cells on their tentacles. Which of these has the most similar
function to the sting of a jellyfish:
Multiple Choice
a. The sting of a bee is because it injects venom to defend itself when threatened.
b. The bite of a snake because it injects venom to immobilize prey to eat.
c. The thorn of a cactus makes it too pointy to chew up.
d. The irritating oils of poison ivy or poison oak that rub onto animals that come in contact with
it.
6. Segmentation in the annelid worms has facilitated locomotion and specialization of different
parts of these animals. Evaluate the following statements about segmentation in the annelids and
determine if they are true or false.
A. Excretion is accomplished by paired protonephridia with flame cells in every segment of the
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B. If the organs in one segment fa.
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1. Which of the following characteristics unite the Lepidoptera and Trichoptera?: a. Hairs or scales covering the wings. b. A proboscis to suck a primarily liquid diet. c. Larvae lacking compound eyes, but having stemmata. d. A and C. e. All of the above 2. Maggot-like larvae are common throughout the Insecta. What are some possible explanations of this pattern?: a. A parasitoid lifecycle has resulted in the loss of legs, eyes and other appendages. b. A leafmining lifecycle has resulted in the loss of legs, eyes and other appendages. c. Communal care in a colony has resulted in the loss of legs, eyes and other appendages. d. A and B. e. All of the above 3. Ant mutualists defend some species of plants by clearing neighboring plants and removing pest insects. What services does the plant provide in return?: a. Extrafloral nectaries, which are primarily rich in amino acids. b. Protein rich Beltian bodies. c. A protected enclosure to call home. d. B and C. e. All of the above 4. You're rummaging in the leaf litter and come across an interesting caterpillar-like larva, but you're unsure whether it's a member of the Symphyta or the Lepidoptera. To tell them apart you look for: a. Three pairs of true legs. b. A well-defined sclerotized head capsule. c. Prolegs that do not have crochets. d. Chewing mandibles versus sucking mouthparts. e. Who isn't vibing. 5. You come across a winged male insect and being a world-renowned myrmecologist, you immediately know it is an ant because of the following character(s) (circle any): a. The antennae are elbowed. b. The insect lacks a stinger. c. Only male ants have wings. d. It is not married to your uncle e. The mesosoma is separated from the gaster by a humped pedicel. 6. Which statements about insect symbionts are correct?: a. Alimentary tract symbionts are frequently transferred vertically, via eggs of the host. b. Endosymbionts are most commonly transferred horizontally, for instance by anal feeding by the host. c. Primary endosymbionts frequently evolve in parallel with their insect hosts. d. Secondary endosymbionts are typically obligate mutualists with their insect hosts. e. All of the above. 7. The Lepidopteran family a. Gracillaridae; particularly rapid metamorphosis. b. Sphingidae; when the pupa is able to move around. c. Agromyzidae; dramatic morphological changes between instars. d. Gracillaridae; dramatic morphological changes between instars.
.
1. Members of one species cannot successfully interbreed and produc.docx
1. Members of one species cannot successfully interbreed and produce fertile offspring with members of other species. This idea is known as
a. reproductive success.
b. punctuated evolution.
c. adaptive radiation.
d. the biological species concept.
e. geographic isolation.
2. The origin of new species, the extinction of species, and the evolution of major new features of living things are all changes that result from
a. macroevolution.
b. fitness.
c. speciation.
d. the biological species concept.
e. convergent evolution.
3. Which is a barrier that can contribute to reproductive isolation?
a. timing
b. behavior
c. habitat
d. incompatible reproductive structures
e. all of the above
4. Which of the following statements is false?
a. Horses and donkeys are separate species.
b. Two mules can mate and produce fertile offspring.
c. A horse and a donkey can mate and produce offspring.
d. Two donkeys can mate and produce fertile offspring.
e. Two horses can mate and produce fertile offspring.
5. The evolution of the penguin’s wing from a wing suited for flying to a “flipper-wing” used for swimming is an example of
a. refinement of existing adaptations.
b. reproductive isolation.
c. adaptation of existing structures to new functions.
d. inheritance of acquired characteristics.
e. the biological species concept.
6. Which of the following have been preserved as fossils?
a. dinosaur footprints
b. insects preserved in amber
c. petrified plant remains
d. animal bones
e. all of the above
7. The mass extinctions that included the dinosaurs took place during which period?
a. Cambrian (543–510 million years ago)
b. Devonian (409–363 million years ago)
c. Carboniferous (363–290 million years ago)
d. Jurassic (206–144 million years ago)
e. Cretaceous (144–65 million years ago)
8. The development of the complex, camera-like eye of a mammal is an example of
a. refinement of existing adaptations.
b. reproductive isolation.
c. adaptation of existing structures to new functions.
d. inheritance of acquired characteristics.
e. the biological species concept.
9. Which of the following statements is true?
a. Carbon-14 dating is useful for studying the age of early dinosaur fossils.
b. Carbon-14 has a half-life of 5,730 years.
c. Uranium-238 has a very short half-life.
d. Uranium-238 is present in all organisms.
e. Carbon-12 is not found in living plants.
10. Which of the following provides the best explanation for why Australia has so many organisms unique to that continent?
a. punctuated equilibrium
b. the biological species concept
c. convergent evolution
d. continental drift
e. cladistics
11. Scientists think that a meteor that fell in ____________________ may have led to the extinction of the dinosaurs.
a. Australia
b. the Yucatán peninsula
c. The Galápagos Islands
d. Pangaea
e. India
12. The great diversit.
Summative.evolution
This document contains a multiple choice test on evolution concepts including:
- Genomic DNA is a more definite characteristic for showing relatedness between organisms than courting behavior.
- The oldest fossils can be found in the Pre-Cambrian Era.
- Adaptations seen in different bird beak shapes on the Galapagos Islands and the dying out of dinosaurs support the process of adaptation.
- Homologous structures like the wings of bats and butterflies show evolutionary relationships.
- Statements and diagrams illustrate concepts of natural selection, use and disuse, convergent and divergent evolution.
Multiple Choice � Choose the BEST answer for each question below.1.pdf
Multiple Choice Choose the BEST answer for each question below.
1. Which of the following shows the correct descending order of taxonomic levels in the
traditional taxonomic ranks of classification?
a. Kingdom, class, family, species
b. Kingdom, species, family, class
c. Species, family, Kingdom, class
d. Species, Kingdom, class, family
2. Using your knowledge of modern taxonomy, which of the following is the correct way of
writing the binomial Latin name for a the onion plant?
a. Allium cepa
b. Allium cepa
c. Alliumcepa
d. Allium cepa
3. Which of the following kingdoms are classified under the domain Prokaryotes? a. Protists
b. Plantae c. Fungi d. Bacteria
4. How are species grouped in a phylogentic tree?
a. Into families
b. Into clades
c. Into classes
d. Into orders
5. Which organisms are prokaryotes?
a. Archaea, protists
b. Bacteria, plants
c. Fungi, animals
d. Archaea, bacteria
6. In which of the kingdoms would you place unicellular organisms which can live in extreme
environments and sometimes metabolize other chemicals as food?
a. Animalia b. Protists c. Archaea d. Fungi
7. Which of the following is the best example of a pandemic?
a. A season during which various viruses coexist in many different regions
b. an outbreak of one disease affecting an entire Canadian school district
c. an outbreak of one disease over many countries and continents
d. a disease that react in one defined area or region annually
8. Which of the following groups of plants has vascular tissue and reproduce using seeds? a.
Gymnosperms
b. Pteridophyta c. Bryophytes d. Angiosperms
9. Which of the following best describes a rod-shaped bacteria which has a thick cell wall which
turns purple when stained.
a. Cocci, gram positive
b. Bacillus, gram negative
c. Bacillus, gram positive
d. Cocci, gram negative
10. Which of the following groups do humans belong to? a. invertebrates
b. Chordates
c. Chlorophyta d. Agnathan 4. Speries, fan ly, Kingdom alew 1. Spociei, Kingdeen, ilan, funily
woreng the binomol iatin rame tor a the anes aiant? a Alsut cepe i. doum cope c. Aliumarpo it
allum reat hetiet Plimie Fungi 4. Bxieru 4. How ine lectes Erubed in o grulnetetic tree? 1. brio
fowiles thto clabes. 2. Into clanser it. hlo bnsin 3. Which or eaciurn ane peotaryetirs? 3 Arches
prutest. 1. Decteria diente . Fungi animale 1. Archeci, badera 2. Asirulas b. Autios . Asitard 4.
Fungi 7. Whik of dee Gilluwis is tie bat cunpic of a purdenint? b. an estroat of enr dieres alheting
an intire Carsefia schoel tivenct 4. Cesencoperins c. Birywoptrien 4. Aagnererm waich numi
perple whe itarnod 1. Cexic eram neirive 4. Meciltan gram acpadive c. Aaciltan pram peitive 4.
Covil gremagminx 1. imvertetents Thsithin 4. Chierptyte 4. A cruttin
Muhiple Choice - Chose the BeFST anww or foes cach quostine below: tradrional tacenomic
reaks of dassification? a. Kingdom clanc, tamily, ipecien b. Kingdom, apecios, family, clasi C.
Speise fanity, Kingdem twes d. Speciec. Kingdeen clack family 2. Usine your know.
Kingdoms
Classification systems help scientists communicate by arranging organisms into groups based on similar structures, behaviors, diets, and chemical makeup. There are five main kingdoms - Monera, Protista, Fungi, Plantae, and Animalia. Organisms can be further classified into domains, kingdoms, phyla, classes, orders, families, genera, and species based on distinguishing characteristics. The animal kingdom contains nine phyla including Chordata which contains seven classes - Cyclostomata, Chondrichthyes, Osteichthyes, Amphibia, Reptilia, Aves, and Mammalia - that differ in traits like temperature regulation, skeletal structure, and reproductive strategies.
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1. During your semester abroad you are taking part in a field study in a tropical localtion.
Although the area is in the tropics you are afforded indoor plumbing and electricity during your
stay. However, because you are at risk to specific parasitic roundworms your instructor explains
how to stay safe from infection. Which of the following statements will help you avoid
infection?
Multiple Choice
a. Mosquito repellent should be worn during the day and mosquito netting should be used while
sleeping to protect you from Wuchereria bancrofti .
b. Mosquito repellent should be worn during the day and mosquito netting should be used while
sleeping to protect you from Necator americanus .
c. Shoes (no open-toed shoes or sandals) or boots should be worn to prevent infection by
Wuchereria bancrofti .
d. Shoes (no open-toed shoes or sandals) or boots should be worn to prevent infection by
Necator americanus .
2. Most cnidarians possess two distinct body forms: the polyp, which is _________blank, and the
medusa, which is _________blank.
Multiple Choice
a. sessile; motile.
b. asymmetric; radially symmetric.
c. poisonous; nonpoisonous.
d. diplobastic; triploblastic.
3. Insects - of the subphylum Hexapoda - are remarkable for how successful they have been and
for their diversity. Which of these are key traits that help the insects, in particular, be so
widespread, diverse, and in so many ecological roles? true or false
a. Most insects have wings. True or False
b. Most insects molt their hard exoskeleton. True or False
c. Insect mouthparts are specialized in many different forms. True or False
d. Insects are parasites so they benefit from the work and nutrition of other animals. True or
False
e. The diets of insects, overall, are extremely varied, so different insects can specialize in almost
any food source. True or False
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major taxonomic classes. Which characteristic would allow you to say definitively that it belongs
to the Class Cephalopoda?
Multiple Choice
a. Mantle.
b. Gills.
c. Nephridia.
d. A closed circulatory system.
5. Jellyfish sting through specialized cells on their tentacles. Which of these has the most similar
function to the sting of a jellyfish:
Multiple Choice
a. The sting of a bee is because it injects venom to defend itself when threatened.
b. The bite of a snake because it injects venom to immobilize prey to eat.
c. The thorn of a cactus makes it too pointy to chew up.
d. The irritating oils of poison ivy or poison oak that rub onto animals that come in contact with
it.
6. Segmentation in the annelid worms has facilitated locomotion and specialization of different
parts of these animals. Evaluate the following statements about segmentation in the annelids and
determine if they are true or false.
A. Excretion is accomplished by paired protonephridia with flame cells in every segment of the
body. True or False
B. If the organs in one segment fa.
1- Which of the following characteristics unite the Lepidoptera and Tr.docx
1. Which of the following characteristics unite the Lepidoptera and Trichoptera?: a. Hairs or scales covering the wings. b. A proboscis to suck a primarily liquid diet. c. Larvae lacking compound eyes, but having stemmata. d. A and C. e. All of the above 2. Maggot-like larvae are common throughout the Insecta. What are some possible explanations of this pattern?: a. A parasitoid lifecycle has resulted in the loss of legs, eyes and other appendages. b. A leafmining lifecycle has resulted in the loss of legs, eyes and other appendages. c. Communal care in a colony has resulted in the loss of legs, eyes and other appendages. d. A and B. e. All of the above 3. Ant mutualists defend some species of plants by clearing neighboring plants and removing pest insects. What services does the plant provide in return?: a. Extrafloral nectaries, which are primarily rich in amino acids. b. Protein rich Beltian bodies. c. A protected enclosure to call home. d. B and C. e. All of the above 4. You're rummaging in the leaf litter and come across an interesting caterpillar-like larva, but you're unsure whether it's a member of the Symphyta or the Lepidoptera. To tell them apart you look for: a. Three pairs of true legs. b. A well-defined sclerotized head capsule. c. Prolegs that do not have crochets. d. Chewing mandibles versus sucking mouthparts. e. Who isn't vibing. 5. You come across a winged male insect and being a world-renowned myrmecologist, you immediately know it is an ant because of the following character(s) (circle any): a. The antennae are elbowed. b. The insect lacks a stinger. c. Only male ants have wings. d. It is not married to your uncle e. The mesosoma is separated from the gaster by a humped pedicel. 6. Which statements about insect symbionts are correct?: a. Alimentary tract symbionts are frequently transferred vertically, via eggs of the host. b. Endosymbionts are most commonly transferred horizontally, for instance by anal feeding by the host. c. Primary endosymbionts frequently evolve in parallel with their insect hosts. d. Secondary endosymbionts are typically obligate mutualists with their insect hosts. e. All of the above. 7. The Lepidopteran family a. Gracillaridae; particularly rapid metamorphosis. b. Sphingidae; when the pupa is able to move around. c. Agromyzidae; dramatic morphological changes between instars. d. Gracillaridae; dramatic morphological changes between instars.
.
1. Members of one species cannot successfully interbreed and produc.docx
1. Members of one species cannot successfully interbreed and produce fertile offspring with members of other species. This idea is known as
a. reproductive success.
b. punctuated evolution.
c. adaptive radiation.
d. the biological species concept.
e. geographic isolation.
2. The origin of new species, the extinction of species, and the evolution of major new features of living things are all changes that result from
a. macroevolution.
b. fitness.
c. speciation.
d. the biological species concept.
e. convergent evolution.
3. Which is a barrier that can contribute to reproductive isolation?
a. timing
b. behavior
c. habitat
d. incompatible reproductive structures
e. all of the above
4. Which of the following statements is false?
a. Horses and donkeys are separate species.
b. Two mules can mate and produce fertile offspring.
c. A horse and a donkey can mate and produce offspring.
d. Two donkeys can mate and produce fertile offspring.
e. Two horses can mate and produce fertile offspring.
5. The evolution of the penguin’s wing from a wing suited for flying to a “flipper-wing” used for swimming is an example of
a. refinement of existing adaptations.
b. reproductive isolation.
c. adaptation of existing structures to new functions.
d. inheritance of acquired characteristics.
e. the biological species concept.
6. Which of the following have been preserved as fossils?
a. dinosaur footprints
b. insects preserved in amber
c. petrified plant remains
d. animal bones
e. all of the above
7. The mass extinctions that included the dinosaurs took place during which period?
a. Cambrian (543–510 million years ago)
b. Devonian (409–363 million years ago)
c. Carboniferous (363–290 million years ago)
d. Jurassic (206–144 million years ago)
e. Cretaceous (144–65 million years ago)
8. The development of the complex, camera-like eye of a mammal is an example of
a. refinement of existing adaptations.
b. reproductive isolation.
c. adaptation of existing structures to new functions.
d. inheritance of acquired characteristics.
e. the biological species concept.
9. Which of the following statements is true?
a. Carbon-14 dating is useful for studying the age of early dinosaur fossils.
b. Carbon-14 has a half-life of 5,730 years.
c. Uranium-238 has a very short half-life.
d. Uranium-238 is present in all organisms.
e. Carbon-12 is not found in living plants.
10. Which of the following provides the best explanation for why Australia has so many organisms unique to that continent?
a. punctuated equilibrium
b. the biological species concept
c. convergent evolution
d. continental drift
e. cladistics
11. Scientists think that a meteor that fell in ____________________ may have led to the extinction of the dinosaurs.
a. Australia
b. the Yucatán peninsula
c. The Galápagos Islands
d. Pangaea
e. India
12. The great diversit.
Summative.evolution
This document contains a multiple choice test on evolution concepts including:
- Genomic DNA is a more definite characteristic for showing relatedness between organisms than courting behavior.
- The oldest fossils can be found in the Pre-Cambrian Era.
- Adaptations seen in different bird beak shapes on the Galapagos Islands and the dying out of dinosaurs support the process of adaptation.
- Homologous structures like the wings of bats and butterflies show evolutionary relationships.
- Statements and diagrams illustrate concepts of natural selection, use and disuse, convergent and divergent evolution.
Multiple Choice � Choose the BEST answer for each question below.1.pdf
Multiple Choice Choose the BEST answer for each question below.
1. Which of the following shows the correct descending order of taxonomic levels in the
traditional taxonomic ranks of classification?
a. Kingdom, class, family, species
b. Kingdom, species, family, class
c. Species, family, Kingdom, class
d. Species, Kingdom, class, family
2. Using your knowledge of modern taxonomy, which of the following is the correct way of
writing the binomial Latin name for a the onion plant?
a. Allium cepa
b. Allium cepa
c. Alliumcepa
d. Allium cepa
3. Which of the following kingdoms are classified under the domain Prokaryotes? a. Protists
b. Plantae c. Fungi d. Bacteria
4. How are species grouped in a phylogentic tree?
a. Into families
b. Into clades
c. Into classes
d. Into orders
5. Which organisms are prokaryotes?
a. Archaea, protists
b. Bacteria, plants
c. Fungi, animals
d. Archaea, bacteria
6. In which of the kingdoms would you place unicellular organisms which can live in extreme
environments and sometimes metabolize other chemicals as food?
a. Animalia b. Protists c. Archaea d. Fungi
7. Which of the following is the best example of a pandemic?
a. A season during which various viruses coexist in many different regions
b. an outbreak of one disease affecting an entire Canadian school district
c. an outbreak of one disease over many countries and continents
d. a disease that react in one defined area or region annually
8. Which of the following groups of plants has vascular tissue and reproduce using seeds? a.
Gymnosperms
b. Pteridophyta c. Bryophytes d. Angiosperms
9. Which of the following best describes a rod-shaped bacteria which has a thick cell wall which
turns purple when stained.
a. Cocci, gram positive
b. Bacillus, gram negative
c. Bacillus, gram positive
d. Cocci, gram negative
10. Which of the following groups do humans belong to? a. invertebrates
b. Chordates
c. Chlorophyta d. Agnathan 4. Speries, fan ly, Kingdom alew 1. Spociei, Kingdeen, ilan, funily
woreng the binomol iatin rame tor a the anes aiant? a Alsut cepe i. doum cope c. Aliumarpo it
allum reat hetiet Plimie Fungi 4. Bxieru 4. How ine lectes Erubed in o grulnetetic tree? 1. brio
fowiles thto clabes. 2. Into clanser it. hlo bnsin 3. Which or eaciurn ane peotaryetirs? 3 Arches
prutest. 1. Decteria diente . Fungi animale 1. Archeci, badera 2. Asirulas b. Autios . Asitard 4.
Fungi 7. Whik of dee Gilluwis is tie bat cunpic of a purdenint? b. an estroat of enr dieres alheting
an intire Carsefia schoel tivenct 4. Cesencoperins c. Birywoptrien 4. Aagnererm waich numi
perple whe itarnod 1. Cexic eram neirive 4. Meciltan gram acpadive c. Aaciltan pram peitive 4.
Covil gremagminx 1. imvertetents Thsithin 4. Chierptyte 4. A cruttin
Muhiple Choice - Chose the BeFST anww or foes cach quostine below: tradrional tacenomic
reaks of dassification? a. Kingdom clanc, tamily, ipecien b. Kingdom, apecios, family, clasi C.
Speise fanity, Kingdem twes d. Speciec. Kingdeen clack family 2. Usine your know.
Kingdoms
Classification systems help scientists communicate by arranging organisms into groups based on similar structures, behaviors, diets, and chemical makeup. There are five main kingdoms - Monera, Protista, Fungi, Plantae, and Animalia. Organisms can be further classified into domains, kingdoms, phyla, classes, orders, families, genera, and species based on distinguishing characteristics. The animal kingdom contains nine phyla including Chordata which contains seven classes - Cyclostomata, Chondrichthyes, Osteichthyes, Amphibia, Reptilia, Aves, and Mammalia - that differ in traits like temperature regulation, skeletal structure, and reproductive strategies.
Chapter 19 Review Questions
The document contains 20 multiple choice questions about animal biology concepts. It asks about the roles of bats, characteristics of animals, hypotheses of animal origins, evolutionary innovations in the animal kingdom, body structures like symmetry, germ layers and body cavities. The questions cover topics like sponges, cnidarians, flatworms, tapeworms and roundworms. It tests knowledge of the defining features, life cycles and examples of different phyla within the animal kingdom.
BIO 101 Exam 8
This document appears to be an online exam reviewing concepts related to biology and evolution. It consists of 12 multiple choice questions about topics like human ancestors, characteristics of chordates, differences between vertebrate and non-vertebrate chordates, distinguishing features of primates, and contrasts between birds and mammals. For each question, the student is asked to select the correct answer from several options.
Kingdoms
This document contains 33 multiple choice questions about biology topics like kingdoms, characteristics of different kingdoms and phyla, and classification of organisms. The questions cover topics such as distinguishing characteristics of monerans, adaptations of amphibians, classification of vertebrates like fish, snakes and dogs, and characteristics of fungi, plants and other kingdoms.
3- Ant mutualists defend some species of plants by clearing neighborin.docx
3. Ant mutualists defend some species of plants by clearing neighboring plants and removing pest insects. What services does the plant provide in return?: a. Extrafloral nectaries, which are primarily rich in amino acids. b. Protein rich Beltian bodies. c. A protected enclosure to call home. d. B and C . e. All of the above 4. You're rummaging in the leaf litter and come across an interesting caterpillar-like larva, but you're unsure whether it's a member of the Symphyta or the Lepidoptera. To tell them apart you look for: a. Three pairs of true legs. b. A well-defined sclerotized head capsule. c. Prolegs that do not have crochets. d. Chewing mandibles versus sucking mouthparts. e. Who isn't vibing. 5. You come across a winged male insect and being a world-renowned myrmecologist, you immediately know it is an ant because of the following character(s) (circle any): a. The antennae are elbowed. b. The insect lacks a stinger. c. Only male ants have wings. d. It is not married to your uncle e. The mesosoma is separated from the gaster by a humped pedicel. 6. Which statements about insect symbionts are correct?: a. Alimentary tract symbionts are frequently transferred vertically, via eggs of the host. b. Endosymbionts are most commonly transferred horizontally, for instance by anal feeding by the host. c. Primary endosymbionts frequently evolve in parallel with their insect hosts. d. Secondary endosymbionts are typically obligate mutualists with their insect hosts. e. All of the above. 7. The Lepidopteran family a. Gracillaridae; particularly rapid metamorphosis. b. Sphingidae; when the pupa is able to move around. c. Agromyzidae; dramatic morphological changes between instars. d. Gracillaridae; dramatic morphological changes between instars.
.
Biological science Comprehensive LET Reviewer
1. The kidney maintains osmotic balance by filtering excess material from the blood.
2. At the end of mitosis, the cell divides through cytokinesis where a new cell wall is formed.
3. A boring tool would first encounter xylem, then vascular cambium, and then phloem when drilling into a tree.
Class 11 Important Questions for Biology - Kingdom Animalia
Here you can get Class 11 Important Questions for Biology based on NCERT Textbook for Class XI. Biology Class 11 Important Questions are very helpful to score high marks in board exams. Here we have covered Important Questions on Kingdom Animalia for Class 11 Biology subject.
Biology notes for summative assessment
Ø Sponges are classified into three classes:
1) The document discusses classification of living organisms from early systems proposed by Aristotle, Linnaeus, Haeckel, Whittaker to the modern five and six kingdom systems.
2) It describes the key features of kingdoms - Monera, Protista, Fungi, Plantae and Animalia. It also discusses viruses.
3) The plant kingdom is divided into cryptogams and phanerogams. Angiosperms and gymnosperms are described in detail along with distinguishing features of monocots and dicots.
Metazoa
This document provides an overview of several phyla within the kingdom Animalia. It begins by describing key characteristics of multicellular animals (Metazoa) including multicellularity, mobility, collagen possession, and heterotrophic feeding. It then summarizes important traits of sponges (Porifera), including their lack of tissues and organs and water canal systems. It also briefly outlines cnidarians, ctenophores, bilateral animals, and several protostome and pseudocoelomate phyla.
Kingdoms
This document discusses the classification of organisms into kingdoms and describes some key characteristics of different kingdoms and phyla. It begins by explaining that organisms are classified based on their structures, behaviors, diets, and chemical makeup. It then provides brief summaries of the five kingdoms - Monera, Protista, Fungi, Plantae, and Animalia - noting some distinguishing features. The majority of the document focuses on describing different phyla within the kingdoms, highlighting examples and key traits like anatomy, respiration, digestion, and circulation.
kINGDOM ANIMALIA
1. The document summarizes the nine major phyla of the animal kingdom - Porifera, Coelenterata, Platyhelminthes, Nematoda, Annelida, Arthropoda, Mollusca, Echinodermata, and Chordata.
2. It provides details on the defining characteristics of each phylum, including their habitat, body structure, digestive system, symmetry, and any specialized structures or cells.
3. The major animal groups that define each phylum are mentioned, such as sponges, jellyfish, flatworms, roundworms, earthworms, insects, mollusks, starfish and sea urchins, and
Protozoa1.ppt
1. Protozoa are a diverse group of unicellular eukaryotes that lack cell walls and motile stages. They exhibit a variety of nutrition modes including ingestion of food.
2. Protozoa display complex cellular organization with specialized organelles. Reproduction can occur asexually through mitosis or sexually through conjugation.
3. They are found in many environments and play important ecological roles. Many protozoa are parasites of medical and veterinary significance.
What is the evolutionary advantage of an exoskeleton A. it waterpro.pdf
What is the evolutionary advantage of an exoskeleton? A. it waterproofs the body. B. it
protects the body c. it provides for muscle attachment D. it allows an animal to molt. E. A, B,
and C only. Why is the term cold-blooded not very appropriate to describe reptiles? A. the
metabolism of the reptiles can generate internal heat by radiation to the environment B. the
keratinized skin of the reptiles serves to insulate and conserve heat. C. the scales of reptiles
serves to rid excess body heat by radiation to the t environment. D. reptiles regulate body
temperature by using various mechanisms such as behavioral adaptations. E. Reptiles swallow
large prey whole to provide enough food to generate body heat. The ________ is a flagellated
cell that sweeps water through the sponge\'s body. A. spicule B. amoebocyte. C. choanocyte
D. spongin. E. sessile body. Protonepheridia are excretory organs found in A. earthworms B.
insects C. jellyfish. D. vertebrates. E. none of the above The feeding habits of lampreys are
best described as A. suspension feeding. B. predatory C. parasitic. D. Scavenging. E. all of the
above. Which of the following is NOT a chordate characteristic? A. the presence of pharyngeal
gills. B. postanal tail. C. ventral hollow nerve chord. D. notochord E. all of the above are
characteristic of chordates.
Solution
Answer:
37) E
Exoskeleton is outermost protective covering of the body in organisms such as arthropods, it is
hard and tough.
38) D
Reptiles are cold-blood animals due to regulation of the body temperature. But for there survival
the adaptation takes place in these animals.
39) C
Choanocyte are the cells that sweeps water through sponge body.
40) E. None of the above.
Protonepheridia is an excretory organs present in the flat worms
41) c
feeding habit is parasitic
42)E
All the given characters of the chordates.
7 A biologist discovers a sister taxon of Platyhelminthes .pdf
7. A biologist discovers a sister taxon of Platyhelminthes. The new taxon likely has all of the
following features except a) coelom b) true organs c) triploblasty d) eye spots e) bilateral
symmetry 8. Which of the following taxonomic groups lacks parasitic organisms? a) Ecdysozoa b)
Nematoda c) Turbellaria d) Cestodes e) Trematoda For each of the following, select (A) True or
(B) False. 9. More than 50% of extant (currently living) animals are arthropods. 10. Segmentation
is a synapomorphy of Porifera. 11. According to recent molecular evidence presented in lecture,
Ctenophora is conclusively the most ancestral group of organisms on the animal phylogeny. 12.
On the traditional phylogeny based on morphological data, Nematoda is the most ancestral
bilaterian Phylum. 13. Pseudocoelomates lack a coelom. 14. "True jelly fish" belong to the Class
Scyphozoa. 15. Closed circulatory system is a synapomorphy of Mollusca. 16. Scolex is a unique
and distinguishing synapomorphy of Rotifers. 17. A key distinguishing synapomorphy of Bivalvia is
adductor muscles. 18. Planarians are pseudocoelomates. 19. A defining synapomorphy of
Cnidaria is choanocytes. 20. Corals provide zooxanthellae with carbon dioxide and nitrogen..
Helminths in adult population in countries.pptx
This is a presentation on helminths in various population groups around the world. Broadly, the term "helminth" refers to parasitic worms that can be classified into 2 phyla: Nematoda (roundworms) and Platyhelminthes (flatworms). The phylum Platyhelminthes is further divided into Cestoda (tapeworms) and Trematoda (flukes).
Helminthiasis is a major public health threat throughout Asia, sub-Saharan Africa, and the Americas. It has been estimated that more than 1 billion people worldwide are infected with at least 1 species, and many are coinfected with 2 or more parasites.[3,4] Most of those affected represent the world's poorest and most vulnerable populations. Economist Paul Collier has termed this population "the bottom billion." Poor access to healthcare, sanitation, and clean water make this group particularly susceptible to infection.
This article will discuss how helminth infections affect arguably the most vulnerable group of all: neonates and young children.
In this first case, both EB and his mother demonstrate consequences of hookworm infection. Two species of hookworm cause disease in humans. Necator americanus is found in the Americas, sub-Saharan Africa, and parts of Asia. A duodenale occurs in the Mediterranean, parts of the Middle East, and Asia. Between 740 million and 1.3 billion people worldwide are probably infected.[2,5]
Hookworm eggs are found in soil contaminated with feces. The larvae hatch, develop in the soil, and penetrate the skin of a human host. As the larvae migrate through the host's skin, a pruritic rash may erupt. The larvae then travel through the bloodstream to the lungs, where they penetrate the alveoli and are swallowed by the host. They mature in the small intestine, where the main manifestations of disease occur. The parasite's mouthpiece contains sharp hooks for attaching to the duodenal wall. Once attached, hookworms release anticoagulant peptides and serine proteinase inhibitors, which contribute to anemia and malabsorption of nutrients, respectively.
After attachment, a single worm may consume 0.3-0.5 mL of blood per day.[6,7] Heavy infection can therefore result in profound anemia as well as protein loss, leading to malnutrition and anasarca. In endemic areas, coinfection with multiple types of helminthes is common and increases nutritional losses.
In general, helminth infections are more common in children than in young infants. Nevertheless, maternal infection is common and can profoundly affect neonatal health. In the case of EB, his mother had a history of anemia and a previous preterm delivery.
Iron-deficiency anemia induced by hookworms poses particular problems for pregnant, breastfeeding, or menstruating women, who have increased iron demands. Iron-deficiency anemia during pregnancy is a known risk factor for intrauterine growth restriction, low birthweight, preterm birth, and low neonatal iron stores.[4,8,9] In areas with poor resources to care for preterm or low-birthweight infants.
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.
QUESTION 1All of the following are parts of a flower except the.docx
QUESTION 1
All of the following are parts of a flower except the
A.
carpel.
B.
ovary.
C.
fruit.
D.
stamen.
E.
cuticle.
QUESTION 2
The segmented worms of the phylum Annelida
A.
have an open circulatory system.
B.
possess setae on each segment.
C.
are acoelomate.
D.
display radial symmetry.
E.
move by use of flagella.
QUESTION 3
In bryophytes, the rhizoids
A.
obtain nutrients.
B.
are involved in reproduction.
C.
obtain water.
D.
lure possible prey.
E.
serve as attachment structures.
QUESTION 4
Which of the following is not a characteristic differentiating Neanderthals from modern humans?
A.
Neanderthals had smaller brains.
B.
Neanderthals had larger noses.
C.
Neanderthals had projecting brow ridges.
D.
Neanderthals were shorter.
E.
Neanderthals were stronger.
QUESTION 5
Fungi exhibit certain characteristics. One of these characteristics is that they
A.
are capable of carrying on photosynthesis.
B.
lack cell nuclei.
C.
reproduce using seeds and pollen.
D.
reproduce using spores.
E.
are prokaryotes.
QUESTION 6
In plants, the secondary metabolites are primarily responsible for
A.
food gathering.
B.
nutrition.
C.
defense.
D.
protection against ultraviolet radiation.
E.
overcoming air pollutants.
QUESTION 7
In cnidarians, nematocysts are important in
A.
obtaining oxygen from the water.
B.
obtaining prey.
C.
movement.
D.
excretion of wastes.
E.
food digestion.
QUESTION 8
Cnidarians and ctenophores are similar in that they both have
A.
a pseudocoel.
B.
a digestive tract with two openings.
C.
radial symmetry.
D.
mesoderm.
E.
nematocysts.
QUESTION 9
All members of the phylum Chordata share
A.
exoskeletons.
B.
gills present throughout their lives.
C.
tails present throughout their lives.
D.
a vertebral column.
E.
a notochord present sometime in their lives.
QUESTION 10
It is generally thought that animals have undergone four major physiological and anatomical innovations during their evolution. These are (in no particular order)
A.
development of tissues, photosynthesis, bilateral symmetry, multicellularity.
B.
development of the versatile forelimb, multicellularity, origin of patterns of embryonic development, development of tissues.
C.
multicellularity, bilateral symmetry, origin of patterns of embryonic development, development of tissues.
D.
bilateral symmetry, development of tissues, origin of the multichambered heart, origin of patterns of embryonic development.
E.
origin of patterns of embryonic development, development of the versatile forelimb, origin of the multichambered heart, multicellularity.
QUESTION 11
Mammals have two traits that set them apart from all other animals. These are
A.
body hair or fur, and being homeothermic.
B.
four-chambered heart and milk production.
C.
amniotic eggs and milk production.
D.
body hair or fur, and milk production.
E.
four-chambered heart and body hair or fur.
QUESTION 12
Which of the following characteristics is not shared by typical birds and mammals?
A.
four limbs
B.
insulating skin ...
Kingdom animalia
This document discusses the phylum Porifera (sponges). It describes their key characteristics such as lacking organs and mobility. It classifies sponges based on their water canal system and skeletal components. Sponge structure is also outlined, including their cell types. The economic and medical roles of sponges are mentioned, such as using certain species for cleaning tools, vehicle seating, and extracting compounds for potential treatments.
Kingdom animalia
This document discusses the phylum Porifera (sponges). It describes their key characteristics such as lacking organs and mobility. It classifies sponges based on their water canal system and skeletal components. Sponges have an ascon, sycon, or leucon canal type. Their skeleton is composed of calcium carbonate, silicates, or spongin. The document also outlines the roles of sponges, including their economic uses as cleaners or seat fillings and their bioactive compounds that have pharmaceutical applications.
Unit 11. Invertebrates
This document provides an overview of invertebrate classification and examples. It discusses the main groups of invertebrates including porifera, cnidaria, worms, molluscs, arthropods, and echinoderms. Key details provided include characteristics of each group, examples of animals within each group, and how they reproduce and breathe. Activities at the end test comprehension of the content through matching, ordering, true/false, and drawing exercises.
The6 Kingdoms.ClassificationNotes#4
The document discusses the six kingdom classification system for organizing living things. It describes the key characteristics of the six kingdoms: Bacteria, Archaea, Protista, Plantae, Fungi, and Animalia. Prokaryotes like bacteria have no nucleus, while eukaryotes in the other five kingdoms have cells with nuclei. Fungi and Animalia contain only heterotrophic organisms, while Plantae contains only autotrophic organisms. The kingdoms are important for understanding the diversity of life on Earth.
9- (4 marks) Suppose the domain D for predicates p-Q and S is (a-b-c)-.pdf
9. (4 marks) Suppose the domain D for predicates p , Q and S is ( a , b , c ) . Express the
following propositions without using quantifiers: a. x P ( x ) b. ( x R ( x )) ( x s ( x )).
9- Earnings per Share is calculated by taking the net income divided.pdf
9. Earnings per Share is calculated by taking the net income divided by:
A. The ending number of common shares outstanding
B. The beginning number of preferred shares outstanding.
C. The average number of common shares outstanding.
D. The average number of common shares issued..
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Chapter 19 Review Questions
The document contains 20 multiple choice questions about animal biology concepts. It asks about the roles of bats, characteristics of animals, hypotheses of animal origins, evolutionary innovations in the animal kingdom, body structures like symmetry, germ layers and body cavities. The questions cover topics like sponges, cnidarians, flatworms, tapeworms and roundworms. It tests knowledge of the defining features, life cycles and examples of different phyla within the animal kingdom.
BIO 101 Exam 8
This document appears to be an online exam reviewing concepts related to biology and evolution. It consists of 12 multiple choice questions about topics like human ancestors, characteristics of chordates, differences between vertebrate and non-vertebrate chordates, distinguishing features of primates, and contrasts between birds and mammals. For each question, the student is asked to select the correct answer from several options.
Kingdoms
This document contains 33 multiple choice questions about biology topics like kingdoms, characteristics of different kingdoms and phyla, and classification of organisms. The questions cover topics such as distinguishing characteristics of monerans, adaptations of amphibians, classification of vertebrates like fish, snakes and dogs, and characteristics of fungi, plants and other kingdoms.
3- Ant mutualists defend some species of plants by clearing neighborin.docx
3. Ant mutualists defend some species of plants by clearing neighboring plants and removing pest insects. What services does the plant provide in return?: a. Extrafloral nectaries, which are primarily rich in amino acids. b. Protein rich Beltian bodies. c. A protected enclosure to call home. d. B and C . e. All of the above 4. You're rummaging in the leaf litter and come across an interesting caterpillar-like larva, but you're unsure whether it's a member of the Symphyta or the Lepidoptera. To tell them apart you look for: a. Three pairs of true legs. b. A well-defined sclerotized head capsule. c. Prolegs that do not have crochets. d. Chewing mandibles versus sucking mouthparts. e. Who isn't vibing. 5. You come across a winged male insect and being a world-renowned myrmecologist, you immediately know it is an ant because of the following character(s) (circle any): a. The antennae are elbowed. b. The insect lacks a stinger. c. Only male ants have wings. d. It is not married to your uncle e. The mesosoma is separated from the gaster by a humped pedicel. 6. Which statements about insect symbionts are correct?: a. Alimentary tract symbionts are frequently transferred vertically, via eggs of the host. b. Endosymbionts are most commonly transferred horizontally, for instance by anal feeding by the host. c. Primary endosymbionts frequently evolve in parallel with their insect hosts. d. Secondary endosymbionts are typically obligate mutualists with their insect hosts. e. All of the above. 7. The Lepidopteran family a. Gracillaridae; particularly rapid metamorphosis. b. Sphingidae; when the pupa is able to move around. c. Agromyzidae; dramatic morphological changes between instars. d. Gracillaridae; dramatic morphological changes between instars.
.
Biological science Comprehensive LET Reviewer
1. The kidney maintains osmotic balance by filtering excess material from the blood.
2. At the end of mitosis, the cell divides through cytokinesis where a new cell wall is formed.
3. A boring tool would first encounter xylem, then vascular cambium, and then phloem when drilling into a tree.
Class 11 Important Questions for Biology - Kingdom Animalia
Here you can get Class 11 Important Questions for Biology based on NCERT Textbook for Class XI. Biology Class 11 Important Questions are very helpful to score high marks in board exams. Here we have covered Important Questions on Kingdom Animalia for Class 11 Biology subject.
Biology notes for summative assessment
Ø Sponges are classified into three classes:
1) The document discusses classification of living organisms from early systems proposed by Aristotle, Linnaeus, Haeckel, Whittaker to the modern five and six kingdom systems.
2) It describes the key features of kingdoms - Monera, Protista, Fungi, Plantae and Animalia. It also discusses viruses.
3) The plant kingdom is divided into cryptogams and phanerogams. Angiosperms and gymnosperms are described in detail along with distinguishing features of monocots and dicots.
Metazoa
This document provides an overview of several phyla within the kingdom Animalia. It begins by describing key characteristics of multicellular animals (Metazoa) including multicellularity, mobility, collagen possession, and heterotrophic feeding. It then summarizes important traits of sponges (Porifera), including their lack of tissues and organs and water canal systems. It also briefly outlines cnidarians, ctenophores, bilateral animals, and several protostome and pseudocoelomate phyla.
Kingdoms
This document discusses the classification of organisms into kingdoms and describes some key characteristics of different kingdoms and phyla. It begins by explaining that organisms are classified based on their structures, behaviors, diets, and chemical makeup. It then provides brief summaries of the five kingdoms - Monera, Protista, Fungi, Plantae, and Animalia - noting some distinguishing features. The majority of the document focuses on describing different phyla within the kingdoms, highlighting examples and key traits like anatomy, respiration, digestion, and circulation.
kINGDOM ANIMALIA
1. The document summarizes the nine major phyla of the animal kingdom - Porifera, Coelenterata, Platyhelminthes, Nematoda, Annelida, Arthropoda, Mollusca, Echinodermata, and Chordata.
2. It provides details on the defining characteristics of each phylum, including their habitat, body structure, digestive system, symmetry, and any specialized structures or cells.
3. The major animal groups that define each phylum are mentioned, such as sponges, jellyfish, flatworms, roundworms, earthworms, insects, mollusks, starfish and sea urchins, and
Protozoa1.ppt
1. Protozoa are a diverse group of unicellular eukaryotes that lack cell walls and motile stages. They exhibit a variety of nutrition modes including ingestion of food.
2. Protozoa display complex cellular organization with specialized organelles. Reproduction can occur asexually through mitosis or sexually through conjugation.
3. They are found in many environments and play important ecological roles. Many protozoa are parasites of medical and veterinary significance.
What is the evolutionary advantage of an exoskeleton A. it waterpro.pdf
What is the evolutionary advantage of an exoskeleton? A. it waterproofs the body. B. it
protects the body c. it provides for muscle attachment D. it allows an animal to molt. E. A, B,
and C only. Why is the term cold-blooded not very appropriate to describe reptiles? A. the
metabolism of the reptiles can generate internal heat by radiation to the environment B. the
keratinized skin of the reptiles serves to insulate and conserve heat. C. the scales of reptiles
serves to rid excess body heat by radiation to the t environment. D. reptiles regulate body
temperature by using various mechanisms such as behavioral adaptations. E. Reptiles swallow
large prey whole to provide enough food to generate body heat. The ________ is a flagellated
cell that sweeps water through the sponge\'s body. A. spicule B. amoebocyte. C. choanocyte
D. spongin. E. sessile body. Protonepheridia are excretory organs found in A. earthworms B.
insects C. jellyfish. D. vertebrates. E. none of the above The feeding habits of lampreys are
best described as A. suspension feeding. B. predatory C. parasitic. D. Scavenging. E. all of the
above. Which of the following is NOT a chordate characteristic? A. the presence of pharyngeal
gills. B. postanal tail. C. ventral hollow nerve chord. D. notochord E. all of the above are
characteristic of chordates.
Solution
Answer:
37) E
Exoskeleton is outermost protective covering of the body in organisms such as arthropods, it is
hard and tough.
38) D
Reptiles are cold-blood animals due to regulation of the body temperature. But for there survival
the adaptation takes place in these animals.
39) C
Choanocyte are the cells that sweeps water through sponge body.
40) E. None of the above.
Protonepheridia is an excretory organs present in the flat worms
41) c
feeding habit is parasitic
42)E
All the given characters of the chordates.
7 A biologist discovers a sister taxon of Platyhelminthes .pdf
7. A biologist discovers a sister taxon of Platyhelminthes. The new taxon likely has all of the
following features except a) coelom b) true organs c) triploblasty d) eye spots e) bilateral
symmetry 8. Which of the following taxonomic groups lacks parasitic organisms? a) Ecdysozoa b)
Nematoda c) Turbellaria d) Cestodes e) Trematoda For each of the following, select (A) True or
(B) False. 9. More than 50% of extant (currently living) animals are arthropods. 10. Segmentation
is a synapomorphy of Porifera. 11. According to recent molecular evidence presented in lecture,
Ctenophora is conclusively the most ancestral group of organisms on the animal phylogeny. 12.
On the traditional phylogeny based on morphological data, Nematoda is the most ancestral
bilaterian Phylum. 13. Pseudocoelomates lack a coelom. 14. "True jelly fish" belong to the Class
Scyphozoa. 15. Closed circulatory system is a synapomorphy of Mollusca. 16. Scolex is a unique
and distinguishing synapomorphy of Rotifers. 17. A key distinguishing synapomorphy of Bivalvia is
adductor muscles. 18. Planarians are pseudocoelomates. 19. A defining synapomorphy of
Cnidaria is choanocytes. 20. Corals provide zooxanthellae with carbon dioxide and nitrogen..
Helminths in adult population in countries.pptx
This is a presentation on helminths in various population groups around the world. Broadly, the term "helminth" refers to parasitic worms that can be classified into 2 phyla: Nematoda (roundworms) and Platyhelminthes (flatworms). The phylum Platyhelminthes is further divided into Cestoda (tapeworms) and Trematoda (flukes).
Helminthiasis is a major public health threat throughout Asia, sub-Saharan Africa, and the Americas. It has been estimated that more than 1 billion people worldwide are infected with at least 1 species, and many are coinfected with 2 or more parasites.[3,4] Most of those affected represent the world's poorest and most vulnerable populations. Economist Paul Collier has termed this population "the bottom billion." Poor access to healthcare, sanitation, and clean water make this group particularly susceptible to infection.
This article will discuss how helminth infections affect arguably the most vulnerable group of all: neonates and young children.
In this first case, both EB and his mother demonstrate consequences of hookworm infection. Two species of hookworm cause disease in humans. Necator americanus is found in the Americas, sub-Saharan Africa, and parts of Asia. A duodenale occurs in the Mediterranean, parts of the Middle East, and Asia. Between 740 million and 1.3 billion people worldwide are probably infected.[2,5]
Hookworm eggs are found in soil contaminated with feces. The larvae hatch, develop in the soil, and penetrate the skin of a human host. As the larvae migrate through the host's skin, a pruritic rash may erupt. The larvae then travel through the bloodstream to the lungs, where they penetrate the alveoli and are swallowed by the host. They mature in the small intestine, where the main manifestations of disease occur. The parasite's mouthpiece contains sharp hooks for attaching to the duodenal wall. Once attached, hookworms release anticoagulant peptides and serine proteinase inhibitors, which contribute to anemia and malabsorption of nutrients, respectively.
After attachment, a single worm may consume 0.3-0.5 mL of blood per day.[6,7] Heavy infection can therefore result in profound anemia as well as protein loss, leading to malnutrition and anasarca. In endemic areas, coinfection with multiple types of helminthes is common and increases nutritional losses.
In general, helminth infections are more common in children than in young infants. Nevertheless, maternal infection is common and can profoundly affect neonatal health. In the case of EB, his mother had a history of anemia and a previous preterm delivery.
Iron-deficiency anemia induced by hookworms poses particular problems for pregnant, breastfeeding, or menstruating women, who have increased iron demands. Iron-deficiency anemia during pregnancy is a known risk factor for intrauterine growth restriction, low birthweight, preterm birth, and low neonatal iron stores.[4,8,9] In areas with poor resources to care for preterm or low-birthweight infants.
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.
QUESTION 1All of the following are parts of a flower except the.docx
QUESTION 1
All of the following are parts of a flower except the
A.
carpel.
B.
ovary.
C.
fruit.
D.
stamen.
E.
cuticle.
QUESTION 2
The segmented worms of the phylum Annelida
A.
have an open circulatory system.
B.
possess setae on each segment.
C.
are acoelomate.
D.
display radial symmetry.
E.
move by use of flagella.
QUESTION 3
In bryophytes, the rhizoids
A.
obtain nutrients.
B.
are involved in reproduction.
C.
obtain water.
D.
lure possible prey.
E.
serve as attachment structures.
QUESTION 4
Which of the following is not a characteristic differentiating Neanderthals from modern humans?
A.
Neanderthals had smaller brains.
B.
Neanderthals had larger noses.
C.
Neanderthals had projecting brow ridges.
D.
Neanderthals were shorter.
E.
Neanderthals were stronger.
QUESTION 5
Fungi exhibit certain characteristics. One of these characteristics is that they
A.
are capable of carrying on photosynthesis.
B.
lack cell nuclei.
C.
reproduce using seeds and pollen.
D.
reproduce using spores.
E.
are prokaryotes.
QUESTION 6
In plants, the secondary metabolites are primarily responsible for
A.
food gathering.
B.
nutrition.
C.
defense.
D.
protection against ultraviolet radiation.
E.
overcoming air pollutants.
QUESTION 7
In cnidarians, nematocysts are important in
A.
obtaining oxygen from the water.
B.
obtaining prey.
C.
movement.
D.
excretion of wastes.
E.
food digestion.
QUESTION 8
Cnidarians and ctenophores are similar in that they both have
A.
a pseudocoel.
B.
a digestive tract with two openings.
C.
radial symmetry.
D.
mesoderm.
E.
nematocysts.
QUESTION 9
All members of the phylum Chordata share
A.
exoskeletons.
B.
gills present throughout their lives.
C.
tails present throughout their lives.
D.
a vertebral column.
E.
a notochord present sometime in their lives.
QUESTION 10
It is generally thought that animals have undergone four major physiological and anatomical innovations during their evolution. These are (in no particular order)
A.
development of tissues, photosynthesis, bilateral symmetry, multicellularity.
B.
development of the versatile forelimb, multicellularity, origin of patterns of embryonic development, development of tissues.
C.
multicellularity, bilateral symmetry, origin of patterns of embryonic development, development of tissues.
D.
bilateral symmetry, development of tissues, origin of the multichambered heart, origin of patterns of embryonic development.
E.
origin of patterns of embryonic development, development of the versatile forelimb, origin of the multichambered heart, multicellularity.
QUESTION 11
Mammals have two traits that set them apart from all other animals. These are
A.
body hair or fur, and being homeothermic.
B.
four-chambered heart and milk production.
C.
amniotic eggs and milk production.
D.
body hair or fur, and milk production.
E.
four-chambered heart and body hair or fur.
QUESTION 12
Which of the following characteristics is not shared by typical birds and mammals?
A.
four limbs
B.
insulating skin ...
Kingdom animalia
This document discusses the phylum Porifera (sponges). It describes their key characteristics such as lacking organs and mobility. It classifies sponges based on their water canal system and skeletal components. Sponge structure is also outlined, including their cell types. The economic and medical roles of sponges are mentioned, such as using certain species for cleaning tools, vehicle seating, and extracting compounds for potential treatments.
Kingdom animalia
This document discusses the phylum Porifera (sponges). It describes their key characteristics such as lacking organs and mobility. It classifies sponges based on their water canal system and skeletal components. Sponges have an ascon, sycon, or leucon canal type. Their skeleton is composed of calcium carbonate, silicates, or spongin. The document also outlines the roles of sponges, including their economic uses as cleaners or seat fillings and their bioactive compounds that have pharmaceutical applications.
Unit 11. Invertebrates
This document provides an overview of invertebrate classification and examples. It discusses the main groups of invertebrates including porifera, cnidaria, worms, molluscs, arthropods, and echinoderms. Key details provided include characteristics of each group, examples of animals within each group, and how they reproduce and breathe. Activities at the end test comprehension of the content through matching, ordering, true/false, and drawing exercises.
The6 Kingdoms.ClassificationNotes#4
The document discusses the six kingdom classification system for organizing living things. It describes the key characteristics of the six kingdoms: Bacteria, Archaea, Protista, Plantae, Fungi, and Animalia. Prokaryotes like bacteria have no nucleus, while eukaryotes in the other five kingdoms have cells with nuclei. Fungi and Animalia contain only heterotrophic organisms, while Plantae contains only autotrophic organisms. The kingdoms are important for understanding the diversity of life on Earth.
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Class 11 Important Questions for Biology - Kingdom Animalia
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8- Which of the following statements are FALSE about the phylum Chorda.pdf
- 1. 8. Which of the following statements are FALSE about the phylum Chordata. a. All chordates have a postanal tal at some stage in life. b. All chordates have pharyngeal slits that wit develop into ancther structure. c. In all chordates, the notochord is replaced by the soinal column during development. e. Both B and C are FALISE 9. Deuterostomes exhibit. a. Radial cleavage b. The blastopore becomes an anus c. Diploblastic germ layers d. Both A and B e. A , B , and C are all correct 10. Damage to its flagellum would prevent a choanocyte from a. circulating water through the sponge. b. stinging and capturing prey. c. secreting spongin to form the spenge body. d. producing the supportive spicules. 11. How could a biologist distingaish an acoelomate flatworm from a free-living nematode? a. The acoelomate worm would be solid throughout since it lacks a true gut: b. The acoelomate worm would havo a nervous system. c. The nematode would have a more primitive gut and nervous system. d) Only the acoelomate is triploblastic. 12. Linnaeus lumped all of the worm-like animals into the category Vermes (Vermis is Latin for worm). is this a vald classification scheme? a. No, because some worms are protists: b. Yes, because all worms are members of the same kingdom and phylum. c. Yes, because all worm-like animals are more closely related to each other than they are to other animals due to the evolutionary history of this body plan. d. No, because the worm-like body plan has appeared many times through evolutionary history and is not a useful trait for classification. 13. Which of the following terms is mismutched with its meaning or characteristics? a. Diploblastic-ectoderm and mesoderm b. Triploblastic-ectoderm, mesoderm, and endoderm c. Porifera-lacks symmetry no tissues d. Chordate-an animal with notochord 14. The most diverse of the four eukaryotic kingdoms is the: a. Protista Kingdom. b. Bacteria Kingdom. c. Plantae Kingdom. d. Animalia kingdom. 15. Of the folowing features, which is the most widely shared in the animal kingdom? a. protortome development b. radial cleavare c. inolring of a cuticle or exoskieleton d. a bady gian with.iymmetry e. a triploblastic embryo