General Characteristics of Mollusca | Dr.BGR Publications
•Download as PPTX, PDF•
0 likes•219 views
Molluscs are soft-bodied animals that generally have bilateral symmetry, a soft unsegmented body divided into a head, foot and visceral mass, and a triploblastic organization. They mostly live in aquatic environments and have a closed circulatory system, respiratory organs like gills or lungs, and excrete waste through metanephridia kidneys. Reproduction is usually sexual with either external or internal fertilization, and development can be direct or indirect through a trochophore larval stage.
Report
Share
Report
Share
Recommended
General Characteristics of Arthropoda | Dr.BGR Publications
Arthropoda are characterized by having jointed appendages, bilateral symmetry, and an exoskeleton. They have segmented bodies divided into three parts - head, thorax, and abdomen. Respiration occurs through general body surfaces, gills, tracheae, or book lungs. The nervous system features a dorsal brain connected to a ventral nerve cord. Reproduction is sexual with separate sexes and sexual dimorphism present. Examples include Daphnia, Palaemon, Julus, and mosquitoes.
General Characteristics of Platyhelminthes | Dr.BGR Publications
Platyhelminthes are flatworms that are mostly parasitic and have bilateral symmetry. They have no coelom, incomplete digestive systems without a mouth or stomach, and excrete through flame cells. They reproduce sexually through internal fertilization and have complex life cycles involving hosts. Examples include the free-living planaria and otoplana, and parasitic forms such as the liver fluke, horseshoe leech, and tapeworm.
General characteristics of Coelenterata | Dr.BGR Publications
Coelenterates are aquatic, mostly marine animals that are radially symmetrical and have two germ layers. They have a gastrovascular cavity called a coelenteron and lack organ systems like a circulatory system. They exist as solitary or colonial polyps or medusa forms. Coelenterates reproduce both asexually through budding and sexually through the fusion of gametes internally or externally. Examples include hydra, jellyfish, sea anemones, and corals.
General characteristics of Protozoa | Dr.BGR Publications
Animals are classified into two groups, namely Invertebrate & Chordate. The invertebrates constitute the main bulk of the animal kingdom.
General Characteristics of Annelida | Dr.BGR Publications
Annelids are segmented bilaterally symmetrical animals that live in aquatic and terrestrial habitats. They have a complete digestive system, respiratory system that uses their general body surface, and a nervous system with an anterior nerve ring, ganglia, and ventral nerve chord. Annelids also have a true closed circulatory system, excrete through nephridia, and reproduce sexually or hermaphroditically with internal or external fertilization and direct development without larval stages.
General Characteristics of Echinodermata | Dr.BGR Publications
Echinodermata are exclusively marine animals with radial symmetry as adults and bilateral symmetry as larvae. They have an endoskeleton, water vascular system, and tube feet. Key characteristics include a triploblastic organization, absence of a nervous system and circulatory system, and indirect development with characteristic larvae. Examples include starfish, sea urchins, sea lilies, and sea cucumbers.
General Characteristics of Pisces | Dr.BGR Publications
Pisces are cold-blooded aquatic vertebrates that breathe through gills and have streamlined bodies covered in scales. They have fins for locomotion and lack eyelids and external ears. Their two-chambered heart circulates nucleated red blood cells through their circulatory system. Reproduction involves separate sexes and internal or external fertilization of eggs.
General Characteristics of Aschelminthes | Dr.BGR Publications
Roundworms are triploblastic, bilaterally symmetrical, endoparasitic pseudocoelomates found in marine and freshwater environments. They have an organ system grade of organization and a simple digestive system with a mouth containing hooks and suckers. Roundworms lack respiratory, circulatory, and well-developed nervous systems. Their excretory system consists of protonephridia and canals and they reproduce sexually through internal fertilization.
Recommended
General Characteristics of Arthropoda | Dr.BGR Publications
Arthropoda are characterized by having jointed appendages, bilateral symmetry, and an exoskeleton. They have segmented bodies divided into three parts - head, thorax, and abdomen. Respiration occurs through general body surfaces, gills, tracheae, or book lungs. The nervous system features a dorsal brain connected to a ventral nerve cord. Reproduction is sexual with separate sexes and sexual dimorphism present. Examples include Daphnia, Palaemon, Julus, and mosquitoes.
General Characteristics of Platyhelminthes | Dr.BGR Publications
Platyhelminthes are flatworms that are mostly parasitic and have bilateral symmetry. They have no coelom, incomplete digestive systems without a mouth or stomach, and excrete through flame cells. They reproduce sexually through internal fertilization and have complex life cycles involving hosts. Examples include the free-living planaria and otoplana, and parasitic forms such as the liver fluke, horseshoe leech, and tapeworm.
General characteristics of Coelenterata | Dr.BGR Publications
Coelenterates are aquatic, mostly marine animals that are radially symmetrical and have two germ layers. They have a gastrovascular cavity called a coelenteron and lack organ systems like a circulatory system. They exist as solitary or colonial polyps or medusa forms. Coelenterates reproduce both asexually through budding and sexually through the fusion of gametes internally or externally. Examples include hydra, jellyfish, sea anemones, and corals.
General characteristics of Protozoa | Dr.BGR Publications
Animals are classified into two groups, namely Invertebrate & Chordate. The invertebrates constitute the main bulk of the animal kingdom.
General Characteristics of Annelida | Dr.BGR Publications
Annelids are segmented bilaterally symmetrical animals that live in aquatic and terrestrial habitats. They have a complete digestive system, respiratory system that uses their general body surface, and a nervous system with an anterior nerve ring, ganglia, and ventral nerve chord. Annelids also have a true closed circulatory system, excrete through nephridia, and reproduce sexually or hermaphroditically with internal or external fertilization and direct development without larval stages.
General Characteristics of Echinodermata | Dr.BGR Publications
Echinodermata are exclusively marine animals with radial symmetry as adults and bilateral symmetry as larvae. They have an endoskeleton, water vascular system, and tube feet. Key characteristics include a triploblastic organization, absence of a nervous system and circulatory system, and indirect development with characteristic larvae. Examples include starfish, sea urchins, sea lilies, and sea cucumbers.
General Characteristics of Pisces | Dr.BGR Publications
Pisces are cold-blooded aquatic vertebrates that breathe through gills and have streamlined bodies covered in scales. They have fins for locomotion and lack eyelids and external ears. Their two-chambered heart circulates nucleated red blood cells through their circulatory system. Reproduction involves separate sexes and internal or external fertilization of eggs.
General Characteristics of Aschelminthes | Dr.BGR Publications
Roundworms are triploblastic, bilaterally symmetrical, endoparasitic pseudocoelomates found in marine and freshwater environments. They have an organ system grade of organization and a simple digestive system with a mouth containing hooks and suckers. Roundworms lack respiratory, circulatory, and well-developed nervous systems. Their excretory system consists of protonephridia and canals and they reproduce sexually through internal fertilization.
Animalia group 3
The Animalia Kingdom is the largest kingdom, containing over 1 million species. It includes both invertebrates and vertebrates. Invertebrates lack an internal skeleton and make up 98% of animal species, having exoskeletons or hydrostatic skeletons. Vertebrates have backbones and include fish, amphibians, reptiles, birds, and mammals. They are distinguished by features like brains, circulatory systems, and sometimes jaws. Both invertebrates and vertebrates are multicellular, heterotrophic eukaryotes that inhabit diverse environments worldwide.
Animal kingdom
The document presents a classification of the animal kingdom. It divides animals into two groups: non-chordates and chordates. Non-chordates are further divided into 9 phyla: protozoa, porifera, coelenterata, platyhelminthes, aschelminthes, annelida, arthropoda, mollusca, and echinodermata. Chordates are divided into 5 classes: pisces, amphibia, reptilia, aves, and mammalia. Examples are provided for most groups. The classification system and examples of animals in the major groups are summarized.
Subphylum Cephalochordata - zoology
The Cephalochordata are a small subphylum (about 28 species) of small, 5 to 10 centimetres long.
All known species are marine. They occur all around the world in both temperate and tropical waters.
Cephalochordates live in shallow marine or brackish water all over the world. They can actively swim around, but most of the time are sedentary, buried in sand.
SPECIES OF Annelids
There are three main classes of annelids: Polychaeta, Oligochaeta, and Hirudinea. Polychaeta includes marine worms like Neries that have many chaetae (hair-like structures) and are useful for respiration and locomotion. Oligochaeta includes terrestrial worms like earthworms that have few chaetae and no parapodia. Hirudinea includes leeches that are ectoparasites and have no chaetae at all. Annelids are bilaterally symmetrical, coelomate worms with closed circulatory systems and no dedicated respiratory organs.
Animal Kingdom
This document provides an overview of the animal kingdom, describing their key characteristics and how they are classified. It discusses that animals are divided into invertebrates and vertebrates. Invertebrates make up 98% of animal species and lack backbones, while vertebrates make up the remaining 2% and include fish, amphibians, reptiles, birds and mammals which all have backbones. It then examines several animal phyla in more detail, describing their defining features, organs and organ systems.
Cephalochordata
General characters, fossil history, classification, primitive characters , affinities, systematic position of cephalochordata
Planarian[1]
Planarian (Flat Worm)
- Planarians are small freshwater flatworms that range from 3-12mm in size and have two eyespots that allow them to move away from light. They have three tissue layers and are carnivorous, feeding on other organisms and dead matter.
- Planarians can reproduce asexually through budding or fission, or sexually by exchanging sperm. They are found beneath rocks and debris in freshwater environments around the world.
Digestive System of Cockroach | Dr.BGR Publications
Food is a substance consumed for energy support. In, digestion the alimentary canal plays a key role.
Chordata Urochordata
Tunicates, also known as sea squirts, are small marine invertebrates that are classified as chordates. They have a notochord during early development that is later lost, but replaced by a backbone in vertebrates. Tunicates have a bilateral symmetrical body structure, lack bones, and use muscles to move against their body. They are hermaphrodites that fertilize eggs internally and eject larvae. Tunicates filter feed by taking in water and extracting particles, and can expel water if frightened. They are considered evolutionary links between invertebrates and vertebrates.
Animal survey 2010
The document summarizes key characteristics and evolutionary trends of the animal kingdom. It describes six major characteristics of animals including being multicellular, heterotrophs, diploid, motile, having embryonic development, and lacking cell walls. It then discusses major evolutionary trends including increasing tissue complexity, symmetry, presence of gut/body cavities, and whether organisms are protostomes or deuterostomes. The document concludes by classifying the major phyla in the kingdom Animalia.
Kingdom animalia
Kingdom Animalia is divided into vertebrates and invertebrates. It contains over 2 million species ranging from microscopic to the largest animals. Vertebrates include mammals, birds, reptiles, amphibians, and fish while invertebrates include echinoderms, arthropods, mollusks, annelids, nematodes, platyhelminths, cnidarians, and poriferans. These diverse animals vary in body covering, size, habitat, and other characteristics.
Orteza edited part 1 animal kingdom 97
This document provides information about the animal kingdom. It describes general characteristics of animals such as being multicellular, eukaryotic, and having a nervous system. It then discusses different types of symmetry found in animals and explains the two main types of skeletons: exoskeleton and endoskeleton. The document proceeds to describe several phyla within the animal kingdom including their defining characteristics. These phyla include porifera, cnidaria, platyhelminthes, nematoda, and annelida. Examples are given for types of animals that fall under each phylum.
11u bio div 08
The document summarizes key characteristics of the Kingdom Animalia. To be an animal, an organism must be multicellular, heterotrophic, reproduce sexually, lack cell walls, be motile during some stage of life, have rapid responses to stimuli, and contain two unique tissues: nervous and muscle tissue. Over time, animals evolved increasing complexity in their cellular organization, body plans, degree of centralization, body cavities, segmentation, and digestive systems. The evolutionary origin of animals is believed to have started from colonial protists in the sea that underwent cell specialization, leading to the first multicellular organisms.
acoelomate bilateral animals
This document discusses several phyla of acoelomate bilateral animals including flatworms, mesozoans, and ribbon worms. Key points include: flatworms are acoelomates with an incomplete digestive system and protonephridia; mesozoans are microscopic parasites considered a link between protozoa and metazoa; ribbon worms use a proboscis to capture prey and have a complete digestive system and closed blood vessels. These phyla are generally considered part of the superphylum Lophotrochozoa.
Levels of organization
This is for FYBSc students of University of Mumbai, Maharashtra, India, studying in course one semester I.
For further query you may email at sudesh_rathod@yahoo.co.in
Lecture 5 platyhelminths presentations
Platyhelminthes are a phylum of flatworms that are acoelomate and bilaterally symmetrical. They may be free-living or parasitic. The phylum contains three classes: Turbellaria, which are free-living flatworms found in freshwater; Trematoda, which are parasitic flukes that have complicated life cycles and infect mollusks and vertebrates; and Cestoda, which are tapeworms that are exclusively parasitic and segmented, lacking digestive systems but containing reproductive organs in each segment. Examples of classes and organisms discussed include the free-living planarian, the liver fluke Fasciola that infects sheep, and the pork tapeworm Taenia
General characteristics of invertebrate phyla
This document provides an overview of the general characteristics of major invertebrate phyla, including Porifera, Coelenterata, Ctenophora, Platyhelminthes, Aschelminthes, Annelida, Arthropoda, Mollusca, Echinodermata, and Hemichordata. For each phylum, the document lists 10-12 of their key characteristics such as habitat, body structure, symmetry, organization, reproduction, and examples of common species.
Animal kingdom
The document discusses three basic body plans that animals fit into: cell aggregate plan, blind sac plan, and tube within a tube plan. It also discusses types of symmetry seen in animals: asymmetrical/spherical, radial, and bilateral symmetry. Additionally, it covers the development of coeloms in animals, from diploblastic to triploblastic organisms, and whether they are acoelomates, pseudocoelomates, or coelomates. Segmentation is also mentioned as another characteristic of animal body plans.
Chordata uro and ceph
- Urochordata and Cephalochordata are two phylums that make up the subphylum Chordata. They share four defining characteristics with all chordates: a notochord, dorsal nerve cord, pharyngeal slits, and an early tail.
- As larvae, both urochordates and cephalochordates display these chordate traits but urochordates lose many during metamorphosis while cephalochordates retain them as adults. Cephalochordates are also known as lancelets.
- The notochord is a flexible rod that runs between the digestive and nervous systems and allows these primitive chordates to swim and move.
Urochordata
- Urochordata, also known as tunicates, are marine chordates characterized by having a notochord only in their larval stage. They belong to the subphylum Urochordata within the phylum Chordata.
- Sea squirts have a free-swimming larval stage with a notochord and tail, but undergo metamorphosis where the notochord is resorbed and they attach themselves permanently to surfaces as sessile filter-feeding adults encased in a tunic.
- The largest class of urochordates is the Ascidiacea, which have a larval stage that transforms into solitary or colonial sessile adults that feed by
Intro to invertebrates tz sp15
This document summarizes key characteristics of animals and compares similarities and differences between different animal phyla. It discusses that most animals are multicellular, aerobic heterotrophs that reproduce sexually and develop from embryos. It describes radial and bilateral symmetry, the three germ layers, and the three types of body cavities. Specific phyla discussed include sponges, cnidarians, roundworms, arthropods, with examples like jellyfish, roundworms, and crayfish. Safety notes are provided for specimen dissections.
Biol 11 Lesson 1 April 5 - Arthropoda (1)
The document provides an overview of arthropods, including:
1) Arthropods are a large phylum characterized by jointed appendages and an exoskeleton. They include insects, spiders, crustaceans, and others.
2) There are four subphyla of arthropods including trilobites, chelicerates, crustaceans, and insects/centipedes/millipedes.
3) Arthropods have segmented bodies and a nervous system concentrated in the head, as well as open circulatory and excretory systems. They molt to grow.
More Related Content
What's hot
Animalia group 3
The Animalia Kingdom is the largest kingdom, containing over 1 million species. It includes both invertebrates and vertebrates. Invertebrates lack an internal skeleton and make up 98% of animal species, having exoskeletons or hydrostatic skeletons. Vertebrates have backbones and include fish, amphibians, reptiles, birds, and mammals. They are distinguished by features like brains, circulatory systems, and sometimes jaws. Both invertebrates and vertebrates are multicellular, heterotrophic eukaryotes that inhabit diverse environments worldwide.
Animal kingdom
The document presents a classification of the animal kingdom. It divides animals into two groups: non-chordates and chordates. Non-chordates are further divided into 9 phyla: protozoa, porifera, coelenterata, platyhelminthes, aschelminthes, annelida, arthropoda, mollusca, and echinodermata. Chordates are divided into 5 classes: pisces, amphibia, reptilia, aves, and mammalia. Examples are provided for most groups. The classification system and examples of animals in the major groups are summarized.
Subphylum Cephalochordata - zoology
The Cephalochordata are a small subphylum (about 28 species) of small, 5 to 10 centimetres long.
All known species are marine. They occur all around the world in both temperate and tropical waters.
Cephalochordates live in shallow marine or brackish water all over the world. They can actively swim around, but most of the time are sedentary, buried in sand.
SPECIES OF Annelids
There are three main classes of annelids: Polychaeta, Oligochaeta, and Hirudinea. Polychaeta includes marine worms like Neries that have many chaetae (hair-like structures) and are useful for respiration and locomotion. Oligochaeta includes terrestrial worms like earthworms that have few chaetae and no parapodia. Hirudinea includes leeches that are ectoparasites and have no chaetae at all. Annelids are bilaterally symmetrical, coelomate worms with closed circulatory systems and no dedicated respiratory organs.
Animal Kingdom
This document provides an overview of the animal kingdom, describing their key characteristics and how they are classified. It discusses that animals are divided into invertebrates and vertebrates. Invertebrates make up 98% of animal species and lack backbones, while vertebrates make up the remaining 2% and include fish, amphibians, reptiles, birds and mammals which all have backbones. It then examines several animal phyla in more detail, describing their defining features, organs and organ systems.
Cephalochordata
General characters, fossil history, classification, primitive characters , affinities, systematic position of cephalochordata
Planarian[1]
Planarian (Flat Worm)
- Planarians are small freshwater flatworms that range from 3-12mm in size and have two eyespots that allow them to move away from light. They have three tissue layers and are carnivorous, feeding on other organisms and dead matter.
- Planarians can reproduce asexually through budding or fission, or sexually by exchanging sperm. They are found beneath rocks and debris in freshwater environments around the world.
Digestive System of Cockroach | Dr.BGR Publications
Food is a substance consumed for energy support. In, digestion the alimentary canal plays a key role.
Chordata Urochordata
Tunicates, also known as sea squirts, are small marine invertebrates that are classified as chordates. They have a notochord during early development that is later lost, but replaced by a backbone in vertebrates. Tunicates have a bilateral symmetrical body structure, lack bones, and use muscles to move against their body. They are hermaphrodites that fertilize eggs internally and eject larvae. Tunicates filter feed by taking in water and extracting particles, and can expel water if frightened. They are considered evolutionary links between invertebrates and vertebrates.
Animal survey 2010
The document summarizes key characteristics and evolutionary trends of the animal kingdom. It describes six major characteristics of animals including being multicellular, heterotrophs, diploid, motile, having embryonic development, and lacking cell walls. It then discusses major evolutionary trends including increasing tissue complexity, symmetry, presence of gut/body cavities, and whether organisms are protostomes or deuterostomes. The document concludes by classifying the major phyla in the kingdom Animalia.
Kingdom animalia
Kingdom Animalia is divided into vertebrates and invertebrates. It contains over 2 million species ranging from microscopic to the largest animals. Vertebrates include mammals, birds, reptiles, amphibians, and fish while invertebrates include echinoderms, arthropods, mollusks, annelids, nematodes, platyhelminths, cnidarians, and poriferans. These diverse animals vary in body covering, size, habitat, and other characteristics.
Orteza edited part 1 animal kingdom 97
This document provides information about the animal kingdom. It describes general characteristics of animals such as being multicellular, eukaryotic, and having a nervous system. It then discusses different types of symmetry found in animals and explains the two main types of skeletons: exoskeleton and endoskeleton. The document proceeds to describe several phyla within the animal kingdom including their defining characteristics. These phyla include porifera, cnidaria, platyhelminthes, nematoda, and annelida. Examples are given for types of animals that fall under each phylum.
11u bio div 08
The document summarizes key characteristics of the Kingdom Animalia. To be an animal, an organism must be multicellular, heterotrophic, reproduce sexually, lack cell walls, be motile during some stage of life, have rapid responses to stimuli, and contain two unique tissues: nervous and muscle tissue. Over time, animals evolved increasing complexity in their cellular organization, body plans, degree of centralization, body cavities, segmentation, and digestive systems. The evolutionary origin of animals is believed to have started from colonial protists in the sea that underwent cell specialization, leading to the first multicellular organisms.
acoelomate bilateral animals
This document discusses several phyla of acoelomate bilateral animals including flatworms, mesozoans, and ribbon worms. Key points include: flatworms are acoelomates with an incomplete digestive system and protonephridia; mesozoans are microscopic parasites considered a link between protozoa and metazoa; ribbon worms use a proboscis to capture prey and have a complete digestive system and closed blood vessels. These phyla are generally considered part of the superphylum Lophotrochozoa.
Levels of organization
This is for FYBSc students of University of Mumbai, Maharashtra, India, studying in course one semester I.
For further query you may email at sudesh_rathod@yahoo.co.in
Lecture 5 platyhelminths presentations
Platyhelminthes are a phylum of flatworms that are acoelomate and bilaterally symmetrical. They may be free-living or parasitic. The phylum contains three classes: Turbellaria, which are free-living flatworms found in freshwater; Trematoda, which are parasitic flukes that have complicated life cycles and infect mollusks and vertebrates; and Cestoda, which are tapeworms that are exclusively parasitic and segmented, lacking digestive systems but containing reproductive organs in each segment. Examples of classes and organisms discussed include the free-living planarian, the liver fluke Fasciola that infects sheep, and the pork tapeworm Taenia
General characteristics of invertebrate phyla
This document provides an overview of the general characteristics of major invertebrate phyla, including Porifera, Coelenterata, Ctenophora, Platyhelminthes, Aschelminthes, Annelida, Arthropoda, Mollusca, Echinodermata, and Hemichordata. For each phylum, the document lists 10-12 of their key characteristics such as habitat, body structure, symmetry, organization, reproduction, and examples of common species.
Animal kingdom
The document discusses three basic body plans that animals fit into: cell aggregate plan, blind sac plan, and tube within a tube plan. It also discusses types of symmetry seen in animals: asymmetrical/spherical, radial, and bilateral symmetry. Additionally, it covers the development of coeloms in animals, from diploblastic to triploblastic organisms, and whether they are acoelomates, pseudocoelomates, or coelomates. Segmentation is also mentioned as another characteristic of animal body plans.
Chordata uro and ceph
- Urochordata and Cephalochordata are two phylums that make up the subphylum Chordata. They share four defining characteristics with all chordates: a notochord, dorsal nerve cord, pharyngeal slits, and an early tail.
- As larvae, both urochordates and cephalochordates display these chordate traits but urochordates lose many during metamorphosis while cephalochordates retain them as adults. Cephalochordates are also known as lancelets.
- The notochord is a flexible rod that runs between the digestive and nervous systems and allows these primitive chordates to swim and move.
Urochordata
- Urochordata, also known as tunicates, are marine chordates characterized by having a notochord only in their larval stage. They belong to the subphylum Urochordata within the phylum Chordata.
- Sea squirts have a free-swimming larval stage with a notochord and tail, but undergo metamorphosis where the notochord is resorbed and they attach themselves permanently to surfaces as sessile filter-feeding adults encased in a tunic.
- The largest class of urochordates is the Ascidiacea, which have a larval stage that transforms into solitary or colonial sessile adults that feed by
What's hot (20)
Digestive System of Cockroach | Dr.BGR Publications
Digestive System of Cockroach | Dr.BGR Publications
Similar to General Characteristics of Mollusca | Dr.BGR Publications
Intro to invertebrates tz sp15
This document summarizes key characteristics of animals and compares similarities and differences between different animal phyla. It discusses that most animals are multicellular, aerobic heterotrophs that reproduce sexually and develop from embryos. It describes radial and bilateral symmetry, the three germ layers, and the three types of body cavities. Specific phyla discussed include sponges, cnidarians, roundworms, arthropods, with examples like jellyfish, roundworms, and crayfish. Safety notes are provided for specimen dissections.
Biol 11 Lesson 1 April 5 - Arthropoda (1)
The document provides an overview of arthropods, including:
1) Arthropods are a large phylum characterized by jointed appendages and an exoskeleton. They include insects, spiders, crustaceans, and others.
2) There are four subphyla of arthropods including trilobites, chelicerates, crustaceans, and insects/centipedes/millipedes.
3) Arthropods have segmented bodies and a nervous system concentrated in the head, as well as open circulatory and excretory systems. They molt to grow.
11th english medium zoology study pdf for students
1. The document discusses the basic levels of organization in animals from the cellular level to organ-system level. It also describes embryonic layer arrangements and types of body cavities.
2. Key animal phyla are then described in detail including their defining characteristics, examples of classes, and distinguishing anatomical features. Phyla covered include porifera, cnidaria, ctenophora, platyhelminths, aschelminths, annelida, arthropoda, mollusca, echinodermata, hemichordata, and chordata.
3. For each phylum, example species are provided along with information on their anatomy, life cycles, and habitats.
Arthropoda
The document summarizes the characteristics of the phylum Arthropoda. It describes their key features such as an exoskeleton made of chitin, segmented bodies, and jointed appendages. The four major subphyla are described as Trilobita, Chelicerata, Crustacea, and Uniramia. Arthropods make up over 2/3 of animal species and are highly adapted to live on land and in water.
Life sciences lesson 1
The document describes the biodiversity of animals, including:
- 1.3 million identified animal species, with invertebrates making up 95% of species.
- Most animals reproduce sexually, with fertilization and early embryonic development involving cleavage, blastula formation, and gastrulation.
- Larval stages are common before metamorphosis into adults.
- Animals are categorized by body plan traits like symmetry, germ layer organization, and presence of body cavities.
Invertibrate introduction
The document provides information on body plans and key characteristics of different animal phyla. It discusses the distinguishing features of acoelomates, pseudocoelomates, and coelomates. Specific examples covered include sponges, cnidarians, platyhelminths, nematodes, annelids like earthworms, and arthropods. For each, the summary highlights adaptive features, anatomy, life cycles, ecological roles, and examples of representative species.
Phlum annelida
This document provides an overview of the phylum Annelida, or segmented worms. It describes their general features, body structures, locomotion, organ systems, classification, and special characteristics. Key points include that Annelida includes over 9,000 species of metamerically segmented animals with a true coelom. They are bilaterally symmetrical, triploblastic, and have organ systems. The four main classes are Polychaeta, Oligochaeta, Hirudinea, and Archiannelida.
Morphology of Cockroach | Dr.BGR Publications
The document summarizes the morphology and characteristics of cockroaches. Cockroaches have an elongated, dorsoventrally flattened body divided into three segments - the head, thorax, and abdomen. They have a pair of antennae that act as sensory organs, three pairs of legs, and two pairs of wings. Their mouthparts consist of labrum, mandibles, maxillae, labium, and hypopharynx. Cockroaches are nocturnal, omnivorous scavengers with compound eyes adapted for low light vision. Males and females differ in size, wing and abdomen shape, and presence of reproductive organs and anal styles.
Morphology assignment
The document summarizes body segmentation and external genitalia in insects. It describes how an insect's body is divided into three segments - the head, thorax, and abdomen. Each segment has distinct features - the head contains antennae, eyes, and mouthparts, the thorax contains three pairs of legs and sometimes wings, and the abdomen contains the digestive and reproductive organs. External genitalia like the ovipositor are also discussed, which can take different forms like needle-like, sword-like, or modified for stinging.
Cell Organisation
This document discusses the organization of cells and tissues in multicellular organisms. It explains that cells differentiate and organize into four basic tissue types - epithelial, connective, muscular and nervous tissues. These tissues then combine to form organs, which work together in organ systems. Homeostasis refers to the process by which the body maintains optimal conditions for cells through feedback mechanisms. Key examples given are regulation of blood pressure and fluid balance between body compartments.
Caie igcse-biology-0610-theory
This document provides an outline of chapters that will be covered in a biology textbook. It includes 21 chapters that cover topics such as characteristics of living organisms, biological molecules, enzymes, plant and human nutrition, transport systems, diseases and immunity, gas exchange, respiration, excretion, coordination and response, reproduction, inheritance, variation and selection, organisms and their environment, biotechnology, and human influences on ecosystems. Each chapter is 1-3 pages in length and provides subheadings that list the main concepts and ideas that will be discussed in that chapter.
Unit-1 Master of forestry(Entomology) final.pptx
This document provides an overview of insect morphology and physiology. It begins by defining entomology and forest entomology, and describing the scope of forest entomology. It then discusses the external morphology of insects, including their body surface, segmentation, head, thorax, abdomen and appendages. The document also describes the internal systems of insects, focusing on the digestive system including the foregut, midgut and hindgut, as well as the respiratory system consisting of trachea and spiracles, and the nervous system composed of a nerve cord and ganglia.
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.
Biodiversity in living organisms
This document provides an overview of the classification of organisms across kingdoms and phyla. It describes the key characteristics of protists, monera, fungi, plants, animals, and the five major animal phyla (porifera, cnidaria, platyhelminths, annelids, and arthropods). For each group, it lists distinguishing features such as cell structure, nutrition, habitat, and example organisms. The animal kingdom is further broken down into chordates, divided into five classes: fish, amphibians, reptiles, birds, and mammals. Each class's defining traits are outlined.
This feature of the hand or front foot characterizes primates The ma.pdf
This document contains definitions of various biological terms:
1) Primates are characterized by features of the hand or front foot, specifically opposable thumbs.
2) Protists exhibit two types of cell cleavage - Protosome exhibit cleavage and duetrostomers exhibit cleavage.
3) Viruses are coated fragments of DNA or RNA that have become detached from cell genomes and can replicate within cells.
Animal kingdom plus1
This document provides a summary of the classification of major animal phyla based on their key characteristics and evolutionary relationships. It discusses the levels of biological organization and describes the distinguishing features of major phyla including porifera, cnidaria, platyhelminthes, annelida, arthropoda, mollusca, echinodermata, chordata, and vertebrata. Key characteristics like symmetry, presence of tissues, body cavities, segmentation, and notochord are used to classify animals into different phyla and subphyla.
Flatworms
This document summarizes several phyla of invertebrate worms, including their defining characteristics, anatomy, life cycles, and means of reproduction and nutrition. It covers the phyla Platyhelminthes (flatworms), Nemertea (ribbon worms), and Gnathostomulida (jaw worms). Key details provided include the classes that make up Platyhelminthes (turbellarians, trematodes, monogeneans, cestodes), their digestive and nervous systems, and complex parasitic life cycles involving multiple hosts.
Biodiversity in living organisms
This document provides classifications for various organisms across kingdoms including:
- Protists which are single-celled eukaryotes that can be autotrophic or heterotrophic. Examples include algae and protozoa.
- Monera which lack nuclei and organelles, including bacteria that can be autotrophic or heterotrophic.
- Fungi which are heterotrophic and absorb nutrients from organic matter. Most are multicellular.
It also describes various plant and animal kingdoms at high levels, noting key distinguishing characteristics like presence of tissues, cell structures, habitats and modes of nutrition and reproduction.
Anatomy
This document discusses the classification of metazoan animals based on their anatomy and embryonic development. It describes how animals can be divided into three main groups: acoelomates without a body cavity, pseudocoelomates with only remnants of a blastocoel cavity, and coelomates with a true body cavity called a coelom. Within coelomates, animals are further divided into protostomes and deuterostomes based on differences in their early embryonic development. The classification systems discussed provide insights into evolutionary relationships among metazoan phyla.
Earland's Animal Review - Bio 11
This document summarizes key characteristics of different phyla in the phylogenetic tree, including defining features, classes within each phylum, and examples of species. It covers cellular through bilateral animals, comparing protostome and deuterostome development, and provides details on porifera, cnidaria, platyhelminthes, nematoda, annelida, mollusca, arthropoda, echinodermata, and chordata.
Similar to General Characteristics of Mollusca | Dr.BGR Publications (20)
11th english medium zoology study pdf for students
11th english medium zoology study pdf for students
This feature of the hand or front foot characterizes primates The ma.pdf
This feature of the hand or front foot characterizes primates The ma.pdf
More from DrBGRPublications
Primary Data | Dr.BGR Publications
Data is a set of facts expressed in quantitative form. It can be primary or secondary. Data collection is the first step for statistical studies.
Advantages of ELISA | Dr.BGR Publications
ELISA is an immunological plate-based assay technique that offers several advantages including high sensitivity and specificity due to the use of antibodies to detect antigens at the picogram level. ELISA also allows for high throughput using 96-well plate formats that can be adapted to 384-well plates. Additionally, ELISA protocols are easy to perform requiring little hands-on time and the assays are quantitative, cost-effective, and can test various sample types without the need for radioactive substances or large amounts of organic solvents.
Applications of ELISA | Dr.BGR Publications
Enzyme-linked immunosorbent assay (ELISA) is an immunoassay used to measure antibodies, antigens, proteins, & glycoproteins in biological samples. ELISA is a plate-based technique.
Tips for Writing Conference Abstract | Dr.BGR Publications
This document provides tips for writing an effective conference abstract. It recommends keeping the abstract concise (250-300 words), following a formula of including the topic, title, author(s), motivation, problem statement, approach, results, and conclusions. Key details to include are the research question, methodology, findings (whether expected or unexpected), and significance. The abstract should be relevant to the conference theme and grab readers' attention. It should be edited after time away and submitted early to allow for review. Presenting research at a conference can provide feedback, attention, and opportunities for collaboration.
Acknowledgements: Research Report | Dr.BGR Publications
The acknowledgement section is one of the important sections for a thesis or dissertation. This section helps to identify the contributors to this research.
ithenticate | Dr.BGR Publications
Plagiarism is presenting someone else's ideas as your own, without full acknowledgment. There are a lot of tools are available in the market for checking the plagiarism in your article. ithenticate is the best tool for the check.
Plagiarism | Dr. BGR Publications
Plagiarism is presenting someone else's published project/ideas as your own, with or without their consent. Without full acknowledgment.
Journal - Dr.BGR Publications
A journal is a scholarly publication that is published periodically containing articles written by researchers and experts. Journals can exist in print or electronic format, with electronic journals being accessible online. All journals are assigned a unique 8-digit International Standard Serial Number to identify the publication regardless of format. Journals contain different types of articles including research articles, review articles, letters, and others focused on sharing new research findings and knowledge. Maintaining a journal provides benefits such as improving mental health, boosting confidence, strengthening writing skills, and enhancing critical thinking.
Poster Presentation | Dr.BGR Publications
A poster presentation is used in the academic community. It contains a brief text mixed with tables, graphs, pictures. A poster session is an event.
Search Engine | Dr.BGR Publications
The search engine plays a vital role in 2022. It is computer software, used to identify the database information. All the best for your "Re-Search".
Literature Citation: Citation Sequence System | Dr.BGR Publications
Literature Citation is very much essential for our "Re-Search". Citation Sequence System is one of the best system of citing references.
Reference Card | Dr.BGR Publications
A reference Card is similar to an Index card. It is used for taking information from a research article.
Cells of the Immune System | Dr.BGR Publications
The document summarizes key components of the immune system. It describes the thymus as the primary lymphoid organ where T cells mature. Within the thymus are epithelial cells, thymocytes that become T cells, dendritic cells, and macrophages. The thymus is larger in newborns and smaller in adults. T cells are categorized as cytotoxic, helper, or regulatory. The thymus also produces hormones that boost immune responses. Bone marrow produces blood cells including red blood cells, white blood cells like T and B cells, and platelets. T and B cells are lymphocytes that respond specifically to antigens. B cells mature in bone marrow while T cells mature in the thymus. Natural killer
Index Card | Dr. BGR Publications
Index Card is very much useful to construct a reference. Create a card with your own writing. All the best for your "Re-Search".
General Characteristics of Mammals | Dr.BGR Publications
Mammals are warm-blooded animals that give birth to offspring. Platypus is known as an egg-laying mammal.
Literature Collection | Dr.BGR Publications
The collection of literature is very important for research. Literature collection is the first step for doing ReSearch.
Introduction to Research | Dr.BGR Publications
Research is nothing but a "Re-Search". So, please be careful at the time of your search. All the best for your search.
Antigens and Immunogens | Dr.BGR Publications
Antigens are molecules that can bind to components of the immune system like antibodies, T cells, and B cells. They include proteins, peptides, polysaccharides, lipids, and nucleic acids and contain epitopes that antibodies bind to. Immunogens are antigens that can trigger an immune response, though not all antigens are immunogenic. Immunogens are typically proteins, peptides, and large polysaccharides but lipids and nucleic acids can also act as immunogens when bound to proteins or polysaccharides. The main difference between antigens and immunogens is that antigens can simply bind to the immune system while immunogens can induce an immune response.
Types of Immunity | Dr.BGR Publications
This document summarizes the different types of immunity. There are two main types: innate immunity, which is the body's first line of defense and includes physical barriers like the skin and mucous membranes, as well as internal responses like inflammation and fever. The second type is adaptive immunity, also known as acquired immunity, which is a more targeted defense that develops from exposure to foreign substances. Adaptive immunity can be either active, gained from direct infection or vaccination, or passive, received from another source like mother's milk or antibody injection. Active immunity is long-lasting while passive immunity only provides short-term protection.
History of Immunology | Dr.BGR Publications
This document provides an overview of immunology and some key figures in its history. It begins by explaining that immunology started as a branch of microbiology focused on the study of disease and the immune system's response to antigens. The document then defines immunology as the study of the immune system, which protects the body from infection. It describes the roles of immunologists as scientists who research the immune system in laboratories and clinics. Several pioneering researchers are highlighted, including Anton van Leeuwenhoek, considered the "Father of Microbiology", for his early microscopic observations. Edward Jenner developed the smallpox vaccine in the late 18th century. Later figures like Louis Pasteur, Paul Ehrlich, and Robert Koch made
More from DrBGRPublications (20)
Tips for Writing Conference Abstract | Dr.BGR Publications
Tips for Writing Conference Abstract | Dr.BGR Publications
Acknowledgements: Research Report | Dr.BGR Publications
Acknowledgements: Research Report | Dr.BGR Publications
Literature Citation: Citation Sequence System | Dr.BGR Publications
Literature Citation: Citation Sequence System | Dr.BGR Publications
General Characteristics of Mammals | Dr.BGR Publications
General Characteristics of Mammals | Dr.BGR Publications
Recently uploaded
Reimagining Your Library Space: How to Increase the Vibes in Your Library No ...
Librarians are leading the way in creating future-ready citizens – now we need to update our spaces to match. In this session, attendees will get inspiration for transforming their library spaces. You’ll learn how to survey students and patrons, create a focus group, and use design thinking to brainstorm ideas for your space. We’ll discuss budget friendly ways to change your space as well as how to find funding. No matter where you’re at, you’ll find ideas for reimagining your space in this session.
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
How to Make a Field Mandatory in Odoo 17
In Odoo, making a field required can be done through both Python code and XML views. When you set the required attribute to True in Python code, it makes the field required across all views where it's used. Conversely, when you set the required attribute in XML views, it makes the field required only in the context of that particular view.
ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...
Denis is a dynamic and results-driven Chief Information Officer (CIO) with a distinguished career spanning information systems analysis and technical project management. With a proven track record of spearheading the design and delivery of cutting-edge Information Management solutions, he has consistently elevated business operations, streamlined reporting functions, and maximized process efficiency.
Certified as an ISO/IEC 27001: Information Security Management Systems (ISMS) Lead Implementer, Data Protection Officer, and Cyber Risks Analyst, Denis brings a heightened focus on data security, privacy, and cyber resilience to every endeavor.
His expertise extends across a diverse spectrum of reporting, database, and web development applications, underpinned by an exceptional grasp of data storage and virtualization technologies. His proficiency in application testing, database administration, and data cleansing ensures seamless execution of complex projects.
What sets Denis apart is his comprehensive understanding of Business and Systems Analysis technologies, honed through involvement in all phases of the Software Development Lifecycle (SDLC). From meticulous requirements gathering to precise analysis, innovative design, rigorous development, thorough testing, and successful implementation, he has consistently delivered exceptional results.
Throughout his career, he has taken on multifaceted roles, from leading technical project management teams to owning solutions that drive operational excellence. His conscientious and proactive approach is unwavering, whether he is working independently or collaboratively within a team. His ability to connect with colleagues on a personal level underscores his commitment to fostering a harmonious and productive workplace environment.
Date: May 29, 2024
Tags: Information Security, ISO/IEC 27001, ISO/IEC 42001, Artificial Intelligence, GDPR
-------------------------------------------------------------------------------
Find out more about ISO training and certification services
Training: ISO/IEC 27001 Information Security Management System - EN | PECB
ISO/IEC 42001 Artificial Intelligence Management System - EN | PECB
General Data Protection Regulation (GDPR) - Training Courses - EN | PECB
Webinars: https://pecb.com/webinars
Article: https://pecb.com/article
-------------------------------------------------------------------------------
For more information about PECB:
Website: https://pecb.com/
LinkedIn: https://www.linkedin.com/company/pecb/
Facebook: https://www.facebook.com/PECBInternational/
Slideshare: http://www.slideshare.net/PECBCERTIFICATION
The History of Stoke Newington Street Names
Presented at the Stoke Newington Literary Festival on 9th June 2024
www.StokeNewingtonHistory.com
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.
What is Digital Literacy? A guest blog from Andy McLaughlin, University of Ab...
What is Digital Literacy? A guest blog from Andy McLaughlin, University of Aberdeen
Walmart Business+ and Spark Good for Nonprofits.pdf
"Learn about all the ways Walmart supports nonprofit organizations.
You will hear from Liz Willett, the Head of Nonprofits, and hear about what Walmart is doing to help nonprofits, including Walmart Business and Spark Good. Walmart Business+ is a new offer for nonprofits that offers discounts and also streamlines nonprofits order and expense tracking, saving time and money.
The webinar may also give some examples on how nonprofits can best leverage Walmart Business+.
The event will cover the following::
Walmart Business + (https://business.walmart.com/plus) is a new shopping experience for nonprofits, schools, and local business customers that connects an exclusive online shopping experience to stores. Benefits include free delivery and shipping, a 'Spend Analytics” feature, special discounts, deals and tax-exempt shopping.
Special TechSoup offer for a free 180 days membership, and up to $150 in discounts on eligible orders.
Spark Good (walmart.com/sparkgood) is a charitable platform that enables nonprofits to receive donations directly from customers and associates.
Answers about how you can do more with Walmart!"
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/qhtvq32h4ybf9t49ku85x0n3xl4jhr15Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...
Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...National Information Standards Organization (NISO)
This presentation was provided by Steph Pollock of The American Psychological Association’s Journals Program, and Damita Snow, of The American Society of Civil Engineers (ASCE), for the initial session of NISO's 2024 Training Series "DEIA in the Scholarly Landscape." Session One: 'Setting Expectations: a DEIA Primer,' was held June 6, 2024.How to deliver Powerpoint Presentations.pptx
"How to make and deliver dynamic presentations by making it more interactive to captivate your audience attention"
BÀI TẬP BỔ TRỢ TIẾNG ANH LỚP 9 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2024-2025 - ...
BÀI TẬP BỔ TRỢ TIẾNG ANH LỚP 9 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2024-2025 - ...Nguyen Thanh Tu Collection
https://app.box.com/s/tacvl9ekroe9hqupdnjruiypvm9rdaneHow to Fix the Import Error in the Odoo 17
An import error occurs when a program fails to import a module or library, disrupting its execution. In languages like Python, this issue arises when the specified module cannot be found or accessed, hindering the program's functionality. Resolving import errors is crucial for maintaining smooth software operation and uninterrupted development processes.
Recently uploaded (20)
Reimagining Your Library Space: How to Increase the Vibes in Your Library No ...
Reimagining Your Library Space: How to Increase the Vibes in Your Library No ...
Beyond Degrees - Empowering the Workforce in the Context of Skills-First.pptx
Beyond Degrees - Empowering the Workforce in the Context of Skills-First.pptx
ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...
ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...
What is Digital Literacy? A guest blog from Andy McLaughlin, University of Ab...
What is Digital Literacy? A guest blog from Andy McLaughlin, University of Ab...
Walmart Business+ and Spark Good for Nonprofits.pdf
Walmart Business+ and Spark Good for Nonprofits.pdf
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 ...
Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...
Pollock and Snow "DEIA in the Scholarly Landscape, Session One: Setting Expec...
BÀI TẬP BỔ TRỢ TIẾNG ANH LỚP 9 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2024-2025 - ...
BÀI TẬP BỔ TRỢ TIẾNG ANH LỚP 9 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2024-2025 - ...
General Characteristics of Mollusca | Dr.BGR Publications
- 1. General Characteristics of Mollusca Dr. BGR General Characteristics of Mollusca
- 3. Introduction Mollis / molluscs: soft
- 5. Scientific classification Kingdom: Animalia Note All animals are members of the Animalia
- 6. Habitat Mostly aquatic few are terrestrial Note Habitat: Natural environment of an animal
- 7. Symmetry bilateral symmetry Note Symmetry: Repetition of the parts in an animal
- 8. Grade of Organization Organ System Grade
- 10. Body divided into head, muscular foot & visceral mass
- 11. Germ layer triploblastic Germ layer endoderm (inner layer) ectoderm (outer layer) mesoderm (middle layer) Note Tri: Three (3)
- 12. Respiration by gills (ctinidia) in the mantle cavity. lungs in terrestrial forms
- 13. Nervous system consists of three pair of ganglia (cerebral, visceral & pedal)
- 14. Circulatory system (or) Cardiovascular system Closed type cardiovascular system open closed
- 15. Excretion pair of Metanephridia (Kidney)
- 18. Development direct / indirect by trochophore larvae Development Direct Indirect
- 19. Example Pila (Apple snail) Limax (Slug) Unio (Freshwater mussel) Turbinella (Shankha) Helix (Garden snail) Octopus (Devilfish) Loligo (Squid) Chiton Doris
- 20. Summary Soft