Molluscs
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Molluscs are invertebrate animals that live in both aquatic and land environments. They have soft bodies and include snails, slugs, clams, oysters, octopuses, and squid. The document outlines the anatomy and characteristics of molluscs, describing the three main types: bivalves, gastropods, and cephalopods. It also discusses how some molluscs interact with and are used by humans as pets, in pharmaceuticals, and as food.
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Phylum mollusca 2014
There are over 50,000 species of molluscs that can be categorized into 7 classes. This document focuses on 3 classes - Gastropoda which includes snails, Bivalvia such as clams with two shells, and Cephalopoda like squid and octopus. Molluscs have a mantle, muscular foot, and secrete calcium-based shells or other stiff structures. They live in a variety of habitats from marine to freshwater and land.
Mollusca Presentation
1. The document is a dating profile posted by a mollusk looking for a mate. It provides information about mollusks, including their habitat, anatomy, behaviors, defenses, and intelligence.
2. Mollusks live in both aquatic and terrestrial environments, and display a range of behaviors from swimming to crawling to shooting ink. They have open circulatory systems and varied respiration methods.
3. The profile seeks a mate that enjoys filter feeding in tidal waters, has keen senses and bilateral symmetry, and for more advanced mollusks, high intelligence. Movement via siphon jets or crawling is preferred.
Mollusca presentationtonyyasen105t
The document discusses the phylum Mollusca, including their classes, evolution, anatomy, locomotion, respiration, excretion, and examples of important molluscs. It notes that molluscs make up 23% of all marine species and the gastropoda class is second only to insects in numbers. Examples highlighted include the giant tiger snail, kleptoparasitic sea slug Elysia chlorotica, and tiny squid Pickfordiateuthis pulchella.
Phylum mollusca
The document provides information about the phylum Mollusca. It discusses the key defining characteristics of molluscs such as the mantle, radula, and foot. It describes the diverse range of mollusc classes including chitons, snails, slugs, clams, squids and octopuses. The text also covers mollusc anatomy, physiology, feeding habits, habitats, fossil records, taxonomy, reproduction and their interactions with humans.
Mollusks
Mollusks are a large phylum of invertebrate animals including snails, slugs, clams, oysters, octopuses and squid. They have soft bodies and some species have shells while others do not. Mollusks are divided into three main classes - bivalves like clams which have two shells, gastropods like snails which have one shell or no shell, and cephalopods like octopuses and squid which are the most complex and recently evolved mollusks.
Molluscan
Cephalopods such as octopuses, squid, and cuttlefish evolved large brains, complex senses, and rapid locomotion for predation, but their numbers have declined dramatically. Vertebrates may have outcompeted cephalopods by developing active predatory lifestyles. Mollusks are a large phylum that includes snails, slugs, mussels and octopuses. They have soft bodies that are sometimes covered by an external shell secreted by the mantle. Mollusks display bilateral symmetry and their body plans generally include a head-foot region and visceral mass.
Molluscs
Molluscs are a diverse phylum that includes over 100,000 species like snails, slugs, clams, oysters, octopuses and squids. They have a mesoderm lined body cavity called a coelom and a larval stage called a trochophore, similar to annelid larvae. The major classes of molluscs are chitons, gastropods, bivalves and cephalopods.
Mollusks
The document discusses the three main classes of mollusks: gastropods which include slugs and snails, bivalves like clams that have two shells, and cephalopods such as squid and octopus. It provides details about their anatomy including that they have a foot, visceral mass containing organs, and mantle that secretes shells for most. It also describes how different types eat, their circulatory systems, and nervous systems. Facts noted are that most live in oceans, range in size from 1mm to 18m, and cephalopods have the most advanced nervous system of invertebrates.
Recommended
Phylum mollusca 2014
There are over 50,000 species of molluscs that can be categorized into 7 classes. This document focuses on 3 classes - Gastropoda which includes snails, Bivalvia such as clams with two shells, and Cephalopoda like squid and octopus. Molluscs have a mantle, muscular foot, and secrete calcium-based shells or other stiff structures. They live in a variety of habitats from marine to freshwater and land.
Mollusca Presentation
1. The document is a dating profile posted by a mollusk looking for a mate. It provides information about mollusks, including their habitat, anatomy, behaviors, defenses, and intelligence.
2. Mollusks live in both aquatic and terrestrial environments, and display a range of behaviors from swimming to crawling to shooting ink. They have open circulatory systems and varied respiration methods.
3. The profile seeks a mate that enjoys filter feeding in tidal waters, has keen senses and bilateral symmetry, and for more advanced mollusks, high intelligence. Movement via siphon jets or crawling is preferred.
Mollusca presentationtonyyasen105t
The document discusses the phylum Mollusca, including their classes, evolution, anatomy, locomotion, respiration, excretion, and examples of important molluscs. It notes that molluscs make up 23% of all marine species and the gastropoda class is second only to insects in numbers. Examples highlighted include the giant tiger snail, kleptoparasitic sea slug Elysia chlorotica, and tiny squid Pickfordiateuthis pulchella.
Phylum mollusca
The document provides information about the phylum Mollusca. It discusses the key defining characteristics of molluscs such as the mantle, radula, and foot. It describes the diverse range of mollusc classes including chitons, snails, slugs, clams, squids and octopuses. The text also covers mollusc anatomy, physiology, feeding habits, habitats, fossil records, taxonomy, reproduction and their interactions with humans.
Mollusks
Mollusks are a large phylum of invertebrate animals including snails, slugs, clams, oysters, octopuses and squid. They have soft bodies and some species have shells while others do not. Mollusks are divided into three main classes - bivalves like clams which have two shells, gastropods like snails which have one shell or no shell, and cephalopods like octopuses and squid which are the most complex and recently evolved mollusks.
Molluscan
Cephalopods such as octopuses, squid, and cuttlefish evolved large brains, complex senses, and rapid locomotion for predation, but their numbers have declined dramatically. Vertebrates may have outcompeted cephalopods by developing active predatory lifestyles. Mollusks are a large phylum that includes snails, slugs, mussels and octopuses. They have soft bodies that are sometimes covered by an external shell secreted by the mantle. Mollusks display bilateral symmetry and their body plans generally include a head-foot region and visceral mass.
Molluscs
Molluscs are a diverse phylum that includes over 100,000 species like snails, slugs, clams, oysters, octopuses and squids. They have a mesoderm lined body cavity called a coelom and a larval stage called a trochophore, similar to annelid larvae. The major classes of molluscs are chitons, gastropods, bivalves and cephalopods.
Mollusks
The document discusses the three main classes of mollusks: gastropods which include slugs and snails, bivalves like clams that have two shells, and cephalopods such as squid and octopus. It provides details about their anatomy including that they have a foot, visceral mass containing organs, and mantle that secretes shells for most. It also describes how different types eat, their circulatory systems, and nervous systems. Facts noted are that most live in oceans, range in size from 1mm to 18m, and cephalopods have the most advanced nervous system of invertebrates.
Mollusca Notes
The document summarizes the phylum Mollusca. It is divided into four main classes: Gastropoda which includes snails and slugs, Bivalvia which includes clams and mussels, Cephalopoda which includes squid and octopus, and Polyplacophora which includes chitons. Molluscs are soft-bodied animals with bilateral symmetry and most secrete an external shell. They live in aquatic and terrestrial habitats and have well-developed organ systems including digestive, circulatory, respiratory, and nervous systems.
phylum mollusca
The document provides information about the phylum Mollusca. It discusses that Mollusca is the second largest phylum and includes animals such as snails, squids, clams, and octopuses. It then summarizes the key characteristics of several mollusc classes, including Bivalvia (clams and mussels), Gastropoda (snails), and Cephalopoda (octopuses and squids). The document also describes some unique adaptations of molluscs and their life cycles.
Mollusca
This document provides an overview of the phylum Mollusca. It discusses that Mollusca is divided into 8 classes, with the most diversity found in Gastropoda and Bivalvia. The key characteristics of molluscs are described, including their versatile body plan, mantle, visceral mass, and shell. The general anatomy and functions of molluscan systems like respiration, circulation, feeding, and reproduction are also summarized. Details are then provided on the defining features of major molluscan classes, including Gastropoda, Bivalvia, and Cephalopoda.
Mollusks
Mollusks are invertebrate animals that typically have a soft body and secrete a hard shell. They have a head with eyes, mouth and brain. Mollusks can be male, female or hermaphroditic. They reproduce either internally or externally. The three main types of mollusks are bivalves like clams, gastropods like snails, and cephalopods like squid and octopuses. Bivalves have two-part shells and use their muscular foot for burrowing. Gastropods have spiral shells and include sea slugs. Cephalopods are highly intelligent and can change their skin color and texture.
Phylum Mollusca
Molluscs are soft-bodied animals with three main body zones - a foot, visceral mass containing internal organs, and mantle. They have a hard calcium carbonate shell or have lost it through evolution. There are three main types - gastropods with one shell, bivalves with two shells, and cephalopods like octopus and squid. Molluscs serve as food but some are poisonous or venomous.
invertebrates : mollusca
This document summarizes key characteristics of the phylum Mollusca. It describes the 9 main classes of molluscs: Gastropoda, Bivalvia, Cephalopoda, Scaphopoda, Monoplacophora, Polyplacophora, Aplacophora. The classes vary in body structure, shell morphology, habitat, locomotion and other traits. Molluscs display a range of ecologically and economically important roles including as human food sources, sources of pearls, and intermediate hosts of parasites.
Phylum mollusca
The phylum Mollusca includes several classes of soft-bodied animals that often have a calcium carbonate shell secreted by a mantle. The body consists of a head, foot, and visceral mass. Molluscs exhibit a range of habitats from terrestrial to marine. Notable classes include Gastropoda (snails and slugs), Bivalvia (clams and oysters), and Cephalopoda (octopuses, squid, and nautiluses), which have complex nervous systems. Molluscs play important ecological roles and some species are economically significant as food sources or decorations.
Mollusks
The document discusses mollusks, dividing them into three main classes: gastropods which include snails and slugs, bivalves which have two shells like mussels and oysters, and cephalopods which are the most active and include squid and octopuses. It notes that mollusks have a muscular foot, mantle that produces shells, and visceral mass containing organs. There are over 50,000 known mollusk species that live in water and on land.
Mollusca
- Molluscs are a large phylum of invertebrate animals that live in both marine and freshwater habitats. They are highly diverse in size, anatomy, behavior, and habitat.
- The phylum contains around 85,000 species and is divided into several classes, with gastropods making up 80% of species. Cephalopods like squid and octopus are among the most neurologically advanced invertebrates.
- Molluscs have a mantle cavity used for breathing and excretion and a nervous system organized around ganglia. Their shells have been important resources for humans.
Mollusks
Mollusks are a large phylum of invertebrate animals that include classes such as bivalves, cephalopods, gastropods, and rostroconchia. They generally have bilateral symmetry, respiratory organs like gills or lungs, an open circulatory system, and a foot and radula. Key characteristics include a complex digestive system with two openings, the lack of a cell wall or chloroplasts, and multicellularity. Bivalves have two-part shells, cephalopods are marine with arms and tentacles, gastropods range in size and many are hermaphrodites, and rostroconchia have a single pseudo-bivalved shell
Mollusca, bivalvia modified geology
The document discusses the phylum Mollusca, which includes snails, slugs, clams, oysters, octopuses and squids. It describes their body plans, classes, lifecycles, and interactions with humans. Molluscs evolved in the sea and most are marine, though some inhabit freshwater or land. Humans use molluscs as food and for pearls, buttons, and as hosts for parasites. The four main classes are gastropods, bivalves, cephalopods, and chitons. Bivalves like mussels and oysters are mostly sessile filter feeders with two shells and siphons.
Mollusca
Mollusks are soft-bodied animals that usually have an external or internal shell. They are grouped together due to sharing a similar developmental pattern involving a trochophore larva. Most adult mollusks have bilateral symmetry, an open circulatory system, and a body plan divided into a muscular foot, mantle, shell, and visceral mass. The three major classes of mollusks are gastropods, bivalves, and cephalopods.
Mollusca general characters
The document provides an introduction and overview of the general characteristics of molluscs. It states that molluscs are soft-bodied animals that inhabit all habitats except air, have existed since the early Cambrian period, and are the second largest phylum of animals. The general characteristics described include having a triploblastic, bilaterally symmetrical body divisible into head, mantle, foot, and visceral mass, with shells sometimes present either internally or externally. Digestion and respiration occur through various organs like the radula, gills, lungs, and the circulatory system utilizes haemocyanin.
Phylum Mollusca
This document summarizes the characteristics of the phylum Mollusca. It describes their soft unsegmented bodies, bilaterally symmetrical structure, and hard calcareous shells. It divides the body into a head, mantle, visceral mass, and foot. It provides details on their digestive, respiratory, circulatory, excretory, and nervous systems. It lists the six major mollusc classes and provides one example for each: Monoplacophora, Amphineura, Scaphopoda, Gastropoda, Pelecypoda/Bivalvia, and Cephalopoda.
Phylum mollusca
The document describes key characteristics of the phylum Mollusca. It includes information on their anatomy, physiology and taxonomy. Some key points are:
- Molluscs are soft-bodied or shelled animals including snails, slugs, clams, squid and octopuses.
- They have a mantle, visceral mass, and in most cases a shell secreted by the mantle.
- Major classes include gastropods, bivalves, cephalopods, chitons and others.
- Life cycles typically involve a trochophore larva, veliger larva and indirect development to adulthood.
molluscs
The document provides an overview of the phylum Mollusca, including general information about their anatomy, habitat, reproduction cycles, classes, and examples. The phylum contains over 90,000 living species ranging from microscopic to over 20 meters in size. They are mostly marine but also found in freshwater and terrestrial environments. Their body plans and features vary between classes but generally include a mantle, visceral mass, and foot, with some having shells.
Phylum Mollusca
The document summarizes key information about four classes of mollusks:
- Monoplacophora are small mollusks with a single cap-like shell that were thought extinct but were rediscovered in 1952. They have serially repeated organs and scrape minerals and organisms for nutrition.
- Polyplacophora, known as chitons, have a dorsal shell made of 8 plates that provides flexibility and protection. They are herbivorous and feed on algae and other sessile organisms.
- Scaphopoda are tusk shells but few details are provided about their characteristics.
- Cephalopoda include squid, octopuses and cuttlefish. They are the most intelligent moll
Molluscs
The document discusses the phylum Mollusca, including their body plans and three main classes. Molluscs are soft-bodied animals that live in various aquatic and moist environments. They have a mantle that secretes a shell in most species and organs like gills. The three classes are bivalves like clams that have two hinged shells, gastropods like snails that have a muscular foot and often a single coiled shell, and cephalopods like octopuses and squid that have tentacles surrounding their head and well-developed eyes and nervous systems.
Activity 10. phylum mollusca
The phylum Mollusca contains soft-bodied animals with an external shell or internal shell. They have a mantle, foot, and some have a radula. The main classes are Gastropoda (snails, slugs), Bivalvia (clams, oysters), Cephalopoda (octopuses, squid), and Polyplacophora (chitons). Mollusks vary in shell number, anatomy, and lifestyle, from free-swimming to burrowing to sessile.
12. Phylum Mollusca Notes
Mollusks are a diverse phylum with over 50,000 species across 10 classes. They include squid, octopus, clams, snails, and oysters. Mollusks have a mantle, foot, and radula as basic anatomical structures. The foot is adapted for movement and the mantle circulates water and secretes shells. Gastropoda includes snails and slugs with a radula and sometimes a shell. Bivalvia includes clams and oysters with two hinged shells and siphons. Cephalopoda are advanced mollusks like squid and octopus with specialized features for swimming including fins or jet propulsion.
Crustaceans & molluscs
This document lists various types of crustaceans and molluscs including blue mussel, clam, cockle, crab, cuttlefish, great scallop, jack knife clam, lobster, octopus, oyster, prawn, snail, squid, and whelk.
Molluscs
This document discusses various soft-bodied aquatic creatures. It mentions octopuses, squid, and snails which live in water and moist places. Octopuses, squid, and snails are listed as examples of soft body shell creatures that can be found in tents or aquatic environments.
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Mollusca Notes
The document summarizes the phylum Mollusca. It is divided into four main classes: Gastropoda which includes snails and slugs, Bivalvia which includes clams and mussels, Cephalopoda which includes squid and octopus, and Polyplacophora which includes chitons. Molluscs are soft-bodied animals with bilateral symmetry and most secrete an external shell. They live in aquatic and terrestrial habitats and have well-developed organ systems including digestive, circulatory, respiratory, and nervous systems.
phylum mollusca
The document provides information about the phylum Mollusca. It discusses that Mollusca is the second largest phylum and includes animals such as snails, squids, clams, and octopuses. It then summarizes the key characteristics of several mollusc classes, including Bivalvia (clams and mussels), Gastropoda (snails), and Cephalopoda (octopuses and squids). The document also describes some unique adaptations of molluscs and their life cycles.
Mollusca
This document provides an overview of the phylum Mollusca. It discusses that Mollusca is divided into 8 classes, with the most diversity found in Gastropoda and Bivalvia. The key characteristics of molluscs are described, including their versatile body plan, mantle, visceral mass, and shell. The general anatomy and functions of molluscan systems like respiration, circulation, feeding, and reproduction are also summarized. Details are then provided on the defining features of major molluscan classes, including Gastropoda, Bivalvia, and Cephalopoda.
Mollusks
Mollusks are invertebrate animals that typically have a soft body and secrete a hard shell. They have a head with eyes, mouth and brain. Mollusks can be male, female or hermaphroditic. They reproduce either internally or externally. The three main types of mollusks are bivalves like clams, gastropods like snails, and cephalopods like squid and octopuses. Bivalves have two-part shells and use their muscular foot for burrowing. Gastropods have spiral shells and include sea slugs. Cephalopods are highly intelligent and can change their skin color and texture.
Phylum Mollusca
Molluscs are soft-bodied animals with three main body zones - a foot, visceral mass containing internal organs, and mantle. They have a hard calcium carbonate shell or have lost it through evolution. There are three main types - gastropods with one shell, bivalves with two shells, and cephalopods like octopus and squid. Molluscs serve as food but some are poisonous or venomous.
invertebrates : mollusca
This document summarizes key characteristics of the phylum Mollusca. It describes the 9 main classes of molluscs: Gastropoda, Bivalvia, Cephalopoda, Scaphopoda, Monoplacophora, Polyplacophora, Aplacophora. The classes vary in body structure, shell morphology, habitat, locomotion and other traits. Molluscs display a range of ecologically and economically important roles including as human food sources, sources of pearls, and intermediate hosts of parasites.
Phylum mollusca
The phylum Mollusca includes several classes of soft-bodied animals that often have a calcium carbonate shell secreted by a mantle. The body consists of a head, foot, and visceral mass. Molluscs exhibit a range of habitats from terrestrial to marine. Notable classes include Gastropoda (snails and slugs), Bivalvia (clams and oysters), and Cephalopoda (octopuses, squid, and nautiluses), which have complex nervous systems. Molluscs play important ecological roles and some species are economically significant as food sources or decorations.
Mollusks
The document discusses mollusks, dividing them into three main classes: gastropods which include snails and slugs, bivalves which have two shells like mussels and oysters, and cephalopods which are the most active and include squid and octopuses. It notes that mollusks have a muscular foot, mantle that produces shells, and visceral mass containing organs. There are over 50,000 known mollusk species that live in water and on land.
Mollusca
- Molluscs are a large phylum of invertebrate animals that live in both marine and freshwater habitats. They are highly diverse in size, anatomy, behavior, and habitat.
- The phylum contains around 85,000 species and is divided into several classes, with gastropods making up 80% of species. Cephalopods like squid and octopus are among the most neurologically advanced invertebrates.
- Molluscs have a mantle cavity used for breathing and excretion and a nervous system organized around ganglia. Their shells have been important resources for humans.
Mollusks
Mollusks are a large phylum of invertebrate animals that include classes such as bivalves, cephalopods, gastropods, and rostroconchia. They generally have bilateral symmetry, respiratory organs like gills or lungs, an open circulatory system, and a foot and radula. Key characteristics include a complex digestive system with two openings, the lack of a cell wall or chloroplasts, and multicellularity. Bivalves have two-part shells, cephalopods are marine with arms and tentacles, gastropods range in size and many are hermaphrodites, and rostroconchia have a single pseudo-bivalved shell
Mollusca, bivalvia modified geology
The document discusses the phylum Mollusca, which includes snails, slugs, clams, oysters, octopuses and squids. It describes their body plans, classes, lifecycles, and interactions with humans. Molluscs evolved in the sea and most are marine, though some inhabit freshwater or land. Humans use molluscs as food and for pearls, buttons, and as hosts for parasites. The four main classes are gastropods, bivalves, cephalopods, and chitons. Bivalves like mussels and oysters are mostly sessile filter feeders with two shells and siphons.
Mollusca
Mollusks are soft-bodied animals that usually have an external or internal shell. They are grouped together due to sharing a similar developmental pattern involving a trochophore larva. Most adult mollusks have bilateral symmetry, an open circulatory system, and a body plan divided into a muscular foot, mantle, shell, and visceral mass. The three major classes of mollusks are gastropods, bivalves, and cephalopods.
Mollusca general characters
The document provides an introduction and overview of the general characteristics of molluscs. It states that molluscs are soft-bodied animals that inhabit all habitats except air, have existed since the early Cambrian period, and are the second largest phylum of animals. The general characteristics described include having a triploblastic, bilaterally symmetrical body divisible into head, mantle, foot, and visceral mass, with shells sometimes present either internally or externally. Digestion and respiration occur through various organs like the radula, gills, lungs, and the circulatory system utilizes haemocyanin.
Phylum Mollusca
This document summarizes the characteristics of the phylum Mollusca. It describes their soft unsegmented bodies, bilaterally symmetrical structure, and hard calcareous shells. It divides the body into a head, mantle, visceral mass, and foot. It provides details on their digestive, respiratory, circulatory, excretory, and nervous systems. It lists the six major mollusc classes and provides one example for each: Monoplacophora, Amphineura, Scaphopoda, Gastropoda, Pelecypoda/Bivalvia, and Cephalopoda.
Phylum mollusca
The document describes key characteristics of the phylum Mollusca. It includes information on their anatomy, physiology and taxonomy. Some key points are:
- Molluscs are soft-bodied or shelled animals including snails, slugs, clams, squid and octopuses.
- They have a mantle, visceral mass, and in most cases a shell secreted by the mantle.
- Major classes include gastropods, bivalves, cephalopods, chitons and others.
- Life cycles typically involve a trochophore larva, veliger larva and indirect development to adulthood.
molluscs
The document provides an overview of the phylum Mollusca, including general information about their anatomy, habitat, reproduction cycles, classes, and examples. The phylum contains over 90,000 living species ranging from microscopic to over 20 meters in size. They are mostly marine but also found in freshwater and terrestrial environments. Their body plans and features vary between classes but generally include a mantle, visceral mass, and foot, with some having shells.
Phylum Mollusca
The document summarizes key information about four classes of mollusks:
- Monoplacophora are small mollusks with a single cap-like shell that were thought extinct but were rediscovered in 1952. They have serially repeated organs and scrape minerals and organisms for nutrition.
- Polyplacophora, known as chitons, have a dorsal shell made of 8 plates that provides flexibility and protection. They are herbivorous and feed on algae and other sessile organisms.
- Scaphopoda are tusk shells but few details are provided about their characteristics.
- Cephalopoda include squid, octopuses and cuttlefish. They are the most intelligent moll
Molluscs
The document discusses the phylum Mollusca, including their body plans and three main classes. Molluscs are soft-bodied animals that live in various aquatic and moist environments. They have a mantle that secretes a shell in most species and organs like gills. The three classes are bivalves like clams that have two hinged shells, gastropods like snails that have a muscular foot and often a single coiled shell, and cephalopods like octopuses and squid that have tentacles surrounding their head and well-developed eyes and nervous systems.
Activity 10. phylum mollusca
The phylum Mollusca contains soft-bodied animals with an external shell or internal shell. They have a mantle, foot, and some have a radula. The main classes are Gastropoda (snails, slugs), Bivalvia (clams, oysters), Cephalopoda (octopuses, squid), and Polyplacophora (chitons). Mollusks vary in shell number, anatomy, and lifestyle, from free-swimming to burrowing to sessile.
12. Phylum Mollusca Notes
Mollusks are a diverse phylum with over 50,000 species across 10 classes. They include squid, octopus, clams, snails, and oysters. Mollusks have a mantle, foot, and radula as basic anatomical structures. The foot is adapted for movement and the mantle circulates water and secretes shells. Gastropoda includes snails and slugs with a radula and sometimes a shell. Bivalvia includes clams and oysters with two hinged shells and siphons. Cephalopoda are advanced mollusks like squid and octopus with specialized features for swimming including fins or jet propulsion.
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This document lists various types of crustaceans and molluscs including blue mussel, clam, cockle, crab, cuttlefish, great scallop, jack knife clam, lobster, octopus, oyster, prawn, snail, squid, and whelk.
Molluscs
This document discusses various soft-bodied aquatic creatures. It mentions octopuses, squid, and snails which live in water and moist places. Octopuses, squid, and snails are listed as examples of soft body shell creatures that can be found in tents or aquatic environments.
Unit 2 the reptiles.
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Amphibians
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This document discusses the key characteristics of mammals. It notes that mammals have bones, hair or fur covering their bodies, breathe with lungs, are born from their mothers, drink their mother's milk, and can include animals that walk, run, swim or fly. It categorizes mammals based on what they eat, such as carnivores that eat meat, herbivores that eat plants, and omnivores that eat a variety of foods. Humans are identified as mammals. The document asks questions to determine whether different animals are vertebrates or invertebrates.
Reproductive strategies in fishes
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Amphibians
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive function. Exercise causes chemical changes in the brain that may help protect against mental illness and improve symptoms.
Mammals, birds, fish and amphibians (ScienceandEnglish.com)
Mammals are vertebrates that have fur or hair, breathe with lungs, give live birth, and drink milk from their mothers as babies. They come in a wide range of sizes from the smallest mice to the largest whales and elephants. Mammals can walk on four legs or have flippers to swim and are herbivores, carnivores, or omnivores depending on their teeth.
Insects
Insects have three main body parts - a head with antennae for touching, tasting, and smelling, a middle thorax section with six legs and sometimes one or two pairs of wings, and an abdomen. They undergo metamorphosis from egg to larva to either a direct transformation into an adult or transformation inside a pupa or chrysalis, and examples include carnivorous Hawaiian caterpillars and bush crickets or herbivorous monarch caterpillars and grasshoppers.
Insects - An Introduction for First Grade
Insects have three body parts - a head, thorax, and abdomen. They have an exoskeleton, six legs, and two antennae. They hatch from eggs and some have wings while others do not. Insects can be helpful by pollinating plants or harmful as pests. Common insects include dragonflies, ladybugs, honeybees, mosquitoes, butterflies, grasshoppers, flies, beetles, and ants. Fun facts are that ants can lift 100 times their weight, honey bees are the only insect that provides food for people, and ladybugs may eat 5000 aphids in their lifetime.
Insects Powerpoint
The document defines what an insect is and provides key details about their characteristics and anatomy. It states that insects have an exoskeleton, three body parts (head, thorax, abdomen), antennae, compound eyes, and many have two pairs of wings. It provides examples of common insect species and notes their diversity, with over 700,000 known species. The document also gives a brief overview of insect sizes, lifecycles, and locomotion.
Reptiles ppt
Reptiles are cold-blooded animals that can survive on land and in water. There are four main groups of reptiles: crocodiles, lizards, turtles, and snakes. Crocodiles are found in tropical environments and can stay underwater for over an hour. Lizards come in many varieties and shed their skin as they grow. Turtles have a hard shell and can retract their head inside. Snakes shed their skin several times per year as they grow and are carnivorous.
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09 protista
1) The document outlines the kingdoms of life and differences between prokaryotes and eukaryotes. It describes how mitochondria and chloroplasts are thought to have originated from prokaryotes that engaged in endosymbiosis with early eukaryotes.
2) Representative protists are described, including slime moulds, red and brown algae, protozoa like amoebas and paramecium, and the malaria-causing plasmodium.
3) Euglena is presented as a protist that exhibits both plant-like and animal-like characteristics, being able to perform photosynthesis using chloroplasts but also ingest food via phagocytosis.
Single celled eukaryotes
Single-celled eukaryotes, or protists, are a diverse group of unicellular organisms. They include protozoa, algae, slime molds, and yeasts. Protists can be photosynthetic, heterotrophic, or mixotrophic. They live in water and soil and play an important role in ecosystems by decomposing nutrients. Protists move using flagella, cilia, pseudopods, or they may be non-motile. They reproduce asexually through mitosis or sexually through conjugation. Some protists are pathogens that can cause diseases in humans and other organisms.
Poriferans and Placozoans
This document summarizes key characteristics of poriferans (sponges) and placozoans. Sponges have choanocytes that capture food through phagocytosis and lack nerves and true musculature. They have an endoskeleton of mesohyl or spicules and spongin. Placozoans are simple multicellular organisms with two epithelial cell layers, glide using cilia or change shape, and digest food extracellularly. Both groups reproduce asexually through budding or fragmentation and sexually.
B I R D S Slideshare
The document contains 50 multiple choice questions about various bird species. The questions cover topics like the taxonomic classification of different birds, physical descriptions to help identify bird species, and behavioral traits or naming origins of specific bird types.
Sponges And Placozoa(2)
- Sponges (phylum Porifera) are the simplest multicellular animals and lack tissues and organs, existing as a porous body supported by spicules and composed of different cell types including choanocytes.
- Two hypotheses for the origin of multicellularity are the syncytial ciliate hypothesis and the colonial flagellate hypothesis.
- Placozoans are the sole member of phylum Placozoa, exist as two epithelial cell layers with a syncytium between, and lack organs but can glide and absorb nutrients.
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This document discusses the characteristics of invertebrate animals. It notes that invertebrates lack backbones and come in a wide range of sizes. Their bodies can have shells, exoskeletons, or no outer covering. The document then examines where invertebrates live and how they move, before categorizing them into major groups including sponges, cnidarians, worms, echinoderms, mollusks, and arthropods. Within arthropods, insects, arachnids, crustaceans, and myriapods are discussed in more detail. The mollusk category explores gastropods, bivalves, and cephalopods.
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.
Annelides
The annelids are a large phylum of over 17,000 ringed worm species including ragworms, earthworms, and leeches. They are bilaterally symmetrical, have a true coelom body cavity, and possess a through gut with mouth and anus. Annelids exist in a variety of marine, freshwater, and terrestrial environments and can be distinguished by their segmented bodies and trochophore larva stage of indirect development. Examples of annelid classes include polychaetes, which have multiple hairs and parapodia limbs, as well as clitellates like oligochaetes including earthworms and hirudinea including leeches.
10 8 all handouts animal diversity 2010 jewett edit
Reptiles are a class of tetrapod vertebrates within the Chordata phylum. They have existed for over 300 million years and are found on every continent except Antarctica, with over 8,000 species. Reptiles are distinguished from other amniotes by having scales that cover their bodies and being cold-blooded. They have three-chambered hearts and lay eggs protected by leathery shells. Common ways reptiles move include walking with alternating front and back legs as well as crawling or creeping. Reptiles include diverse orders such as crocodiles, tuataras, lizards, snakes, turtles, and the now extinct dinosaurs.
Invertebrats 6è B
Invertebrates are animals without backbones and include groups like gastropods, bivalves, cephalopods, insects, arachnids, crustaceans, and miriapods. Gastropods have a shell and parts like a mouth, stomach, anus, and heart. Bivalves are similar but have two shells. Cephalopods like octopuses and squid have tentacles with suckers. Insects live worldwide except the poles and have body parts like an abdomen, head, thorax, eyes, and antennae. Invertebrates live in various habitats and have diverse diets, with some being herbivorous, carnivorous, or cannibalistic
Identify major groupings within the Lophotrochozoa and Ecdy gg g soz.pdf
Identify major groupings within the Lophotrochozoa and Ecdy gg g sozoa ; describe
distinguishing features among groups, where on Earth these organisms are typically found, and
how they make a living
Solution
Lophotrochozoa are a group or taxon of protostome animals. The taxon consists of 2 groups-
trochozoans and lophophorata. Trochozoans are characterized by the development of mouth
before anus in the embryo.They are worm like and produce trochophore larvae - larvae that have
2 bands of cilia around their middle. Lophophorata, on the other hand, are grouped by the
presence of lophophore characterized by a fan of ciliated tentacles surrounding their mouths.
These animals exhibit radial cleavage.
Lophotrochophora includes the following phyla
1. Phylum Ectoprocta:
These are mostly marine coelomates that use lophophore for feesing. They secrete and live in
zoecium (chitinous chamber).
2. Phylum platyhelminthes
These are mostly parasitic acoelomates. Some may live as scavengers or commensals. The are
flat and ribbon-shaped. They have an incomplete gut, no circulatory system, and a simple
nervous system. Their excretory system has small tubules lined with ciliated flame cells. They
are hermaphrodites.
3. Phylum Rotifera
These are small aquatic pseudocoelomate animals. They are mostly free living and a few are
paraitic. They have a ciliated food gathering organ at the tip of the head known as corona. They
have jaws in the pharynx and their digestive system has separate mouth and anus. They have
rudimentary circulatory system and they have separate sexes.
4. Phylum Annelida
They are segmented coelomates with a closed circulatory system. Their excretory system
includes nephrida. They have a digestive system with separate mouth and anus. Gas exchange is
through skin.They have setae. They are found in both terrestrial and aquatic habitats. They can
be parasites, carnivores, predators or scavengers.
5. Phylum Nemertea
They are partially coelomate and partially acoelomate animals. They are free living and possess
proboscis - a long muscular tube covered by a sheath to capture prey. They have a complete
digestive system, a simple nervous system, and a closed circulatory system.
6. Phylum Phoronida:
They are coelomate and marine. They use lophophore for feeding. They have a U-shaped gut and
they secrete and live in a chitinous tube.
7. Phylum Brachipoda:
They are characterized by the presence of 2 calcified shells.
Ecdysozoa also belons to the group of protostome animals characterized by a three layered
cuticle which is periodically molted,a process known as ecdysis. They lack locomotary cilia.
They produce amoeboid sperm. Their embryos donot undergo spiral cleavage unlike other
protostomes.
The group includes
Phylum arthropoda
The phylum includes invertebrate animals with an exoskeleton. They have jointed limbs and
their cuticle is made of chitin. They are segmented with an open circulatory system and a ladder-
like nervous system They are found in both a.
4.4.2 mollusks comparison and fact sheet
This document contains information about different types of mollusks - bivalves, gastropods, and cephalopods. It includes details about their anatomical features such as whether they have a coelom or circulatory system. For each group, an interesting species is chosen - the northern quahog bivalve, green sea slug gastropod, and giant squid cephalopod. Fact sheets are provided for each organism detailing their characteristics, habitat, lifecycle, relationships and more. References are cited at the end.
Animal Phyla
The document describes several animal phyla including porifera, cnidaria, platyhelminthes, nematoda, annelida, mollusca, echinodermata, arthropoda, and chordata. It provides details on key characteristics of each phylum such as body structure, symmetry, digestive system, circulatory system, and examples of common species.
Subphylum Chelicerata.pdf
This document provides information about the subphylum Chelicerata. It belongs to the phylum Arthropoda and includes arachnids like spiders and scorpions. Chelicerata have a segmented body with jointed limbs covered in a cuticle of chitin and protein. They have poison glands containing fangs or claws used to kill prey. Classifications within Chelicerata include Pygnogonids (sea spiders), Merostomata, and Arachnids. Pygnogonids are small marine arthropods with long thin legs that feed by sucking juices from cnidarians.
Invertebrates
1. The document provides information about different animal kingdoms, including their defining characteristics and examples of types of animals within each kingdom.
2. It discusses invertebrates like sponges, cnidarians, worms, and molluscs, describing their anatomy, habitats, behaviors, and other traits.
3. It also examines vertebrate kingdoms such as echinoderms, arthropods, and others, outlining their key features, habitats, diets, reproduction methods, and examples of animals in each group.
Invertebrates and vertebrates
The document discusses the classification of animals into two main groups - vertebrates and invertebrates. It provides details about the key characteristics of each group and some examples of animals that belong to each. Invertebrates are defined as animals without backbones, and include sponges, worms, mollusks, arthropods, echinoderms, and protozoa. Vertebrates have backbones and include fish, amphibians, reptiles, birds, and mammals. The document then goes into further detail about some examples of invertebrates and vertebrates.
Luis flores animal phyla
Porifera are sponges that live in aquatic environments and have pores that allow water flow through their bodies for filter feeding, respiration, and waste removal. Cnidarians like jellyfish, sea anemones, and corals have stinging tentacles used to capture prey which is then brought to the mouth. Platyhelminths are flatworms that have no skeleton and use cilia and muscles to move; they have a combined digestive/excretory system and reproduce asexually.
science8_animalia.pptx
The document defines and provides details about Kingdom Animalia. It discusses how animals are eukaryotic, multicellular organisms that are heterotrophic. The kingdom is then divided into several main phyla, including Chordata, Porifera, Platyhelminthes, Cnidaria, Annelida, Mollusca, Arthropoda, Hemichordata, Echinodermata, Ctenophora, and Aschelminthes. Examples of animals from different phyla, such as jellyfish, dogs, and others are also provided.
The world of Annelids_gallardo2028
The document discusses the phylum Annelida, which includes segmented worms. It describes three main classes within the phylum - Polychaeta (including marine bristle worms), Oligochaeta (including terrestrial earthworms), and Hirudinea (including leeches). Key characteristics of annelids include a segmented body, closed circulatory system, and sexual reproduction, though some can reproduce asexually. They play an important ecological role in soil and sediment reworking.
animalkingdom
The document classifies and describes different types of animals. It divides animals into invertebrates, which lack backbones, and vertebrates, which have backbones. Invertebrates include protozoa, annelids, arthropods like insects and crustaceans, echinoderms, and mollusks. Vertebrates include fish, amphibians, reptiles, birds, mammals, and primates like humans. Within these groups it describes characteristics of common animals such as starfish, earthworms, spiders, whales, and mice.
Major phylum in Animal Kingdom.pptx
A presentation for BSC biology semester 1 students. This rich presentation is about major phylum in animal kingdom, each phylum is explained in detail with their general characterstics. Can be used for presenting in college or school, teaching, learning, etc.
Unit 24 Arthropods
This document provides information on arthropods in three paragraphs. It begins by stating that arthropods are the most diverse animals, sharing features like an exoskeleton, jointed appendages, and segmented body parts. It then explains that arthropods are classified into five major groups. Finally, it outlines some of the adaptations of arthropods, including that their exoskeletons allow movement through joints and must be shed to grow, and that most have compound eyes and sensory organs.
Animalphylum
The document summarizes several animal phyla including poriferans (sponges), cnidarians (jellyfish and corals), platyhelmins (flatworms), nematodes (roundworms), mollusks (clams and squid), annelids (segmented worms), arthropods (insects and crustaceans), and echinoderms (sea stars and sea urchins). It provides key characteristics for each phylum such as their body structure, digestive system, circulatory system, symmetry, and major examples of animals within each group.
ANIMAL KING WITH MOTIVATION AND REVIEW
The document describes the characteristics of arthropods. Arthropods have segmented bodies, jointed appendages, and an external exoskeleton made of chitin. They molt and shed their exoskeleton as they grow. Arthropods are found in many environments and have a variety of shapes and sizes. However, they all share traits like jointed legs, segmentation, distinct heads, and often compound eyes.
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Molluscs
- 2. INDEX -How are molluscs? -Anatomy of a snail. -Types of molluscs -Relation with humans. -Curiosities.
- 3. Molluscs are invertabrate animals, so they dont have a bony skeleton. They are heterothrophic multucellular organisms that have eukaryotic cells. Most molluscs are aquatic, but some of them live in land. All of them have: - A visceral mass, that contains all internal organs. -An external layer that surrounds the internal organs inside the visceral mass. -An internal ot external shell. Some molluscs, like the octopus don´t have a shell. -A complete digestive system, which includes the radula in all individualds except in bivalves. -They reproduce sexually.
- 4. This is the anatomy of a snail, that is part of gastropods. It has a foot use for moving, the lung, anus, heart, mouth (with a radula use for biting and chewing) , eyes, tentacles and anus.
- 5. Types of molluscs There are three types of molluscs: -Bivalves -Gastropods -Cephalopods Gastropods and cephalopods have foot, separed head and a radula. Bivalves is the only group that don t have them.
- 6. Types of molluscs Bivalves have no separed head from their bodies. They don´t have a radula, like other molluscs, and don´t move because they don´t have foot. They usually live in water. They have gills to respire. Gastropods hava a muscular foot, that they use for moving. They have a complete digestive system and they are herbivores. They have an external shell. Cephalopods live in water and they have tentacles. They use their tentacles to cath their pray, because they are carnivores. Not all of them have a shell.
- 7. Some of them can be pets, like the famous ``Pulpo Poll´´. They have also beneficies in pharmaceuticas industries, because some of the substances they segregate can be used to make cream or medicines. For example, the snail secretion is used to make cream and the squid ink, was used to make pen´s ink. And some people like me, considerate molluscs as a delicious dish.
- 8. Some molluscs are completelly simetric on both sides, for exaple the snails. There are 100.000 different types of molluscs, and the 80% are gastropods. The gigant squid is the biggest mollusc in the word. Another curious date is that are 35.000 extint species in thw word, because thay had soported radical changes.