Detailed classification chart of invertebrate animals (with characteristics)? Plz plz answer soon
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Phylum: Protoza
Protoza are unicellular organisms, having no physiological division of labour. Amoeba, Paramecium, Euglena, Stentor, stylonchia, etc. are some free living protozoa.
Characteristics of protozoa
They may be solitary, colonial or free living, aquatic parasitic.
Most of them live in water (aquatic) but some live in damp soil or inside other animal (parasitic).
Locomotion take place by pseudopodia, flagella or cilia.
Reproduction takes place mostly by means.
These constantly change the body shape.
Examples: Amoeba, Paramecium, Euglena, Entamoeba, Plasmodium, etc.
Euglena
Plasmodium
Phylum : Porifera
They live mainly in salty water. About 5,000 species are known today, commonly called sponges. These animals are referred as.
Characteristics
These are found in salty water.
These are multicellular animals.
They have cylindrical shape body.
Germinal layers are ill developed.
Inner surface has flagellate collar cells or choancocytes.
Reproduction is both sexual and asexual.
Examples: Sycon, Bath sponge, Euplectella, Glass- rope sponge, etc.
Sycon
Phylum : Coelenterates
About 10,000 species are known.
Characteristics
These are marine animals which may be solitary or colonical.
They have a hollow body like a bag.
The body is two layered (diplomatic).
The body possesses a radii symmetry.
The mouth is surrounded by tentacles which are usually thread like out growths.
Stinging cells or Nematocytes are present.
Examples: Hydra, Jelly fish, Sea anemone, Coral, pennataula, etc.
Jelly Fish
Hydra
Phylum : Platyhelminthes
About 6500 species are known. Common forms are Flukes, and Tapeworms.
Characteristics
They are commonly known as Flat worms.
They are accommodate forms.
They are bisexual.
The body is bilaterally symmetrical.
Nervous system is simple.
Examples: Liver fluke, planaria, Tapeworm, blood fluke, etc.
Planaria
Liverfluke
Phylum : Nemathelminthes
About 10000 species are known. Examples: Ascaris (Roundworm), Oxyuris (pinworm), Ancylostoma (hookworm).
Characteristics
They are commonly known as roundworms.
Body is bilaterally symmetrical.
Sexes are separate. Reproductive system is simple.
Usually parasites, some free living forms are also met with.
The nervous system is in the form of ring.
Respiratory organs and blood vascular system are absent.
Examples: Ascaris, Anylostoma, Oxyuris, etc.
Ascaris
Phylum : Annelida
About 13500 species are known.
Characteristics
The body is metamerically segmented.
The body shows bilateral symmetry.
Excretory organs are Nephiridia.
Sexes are either separate or the organism are hermaphrodite.
The body has longitudinal and circular muscles.
Examples: Earthworm, Leech, Polygordius, etc.
Phylum : Arthropoda
The word arthropoda means jointed foot. It is the largest group of animals comprising of about 700000 species. The animals of this phylum are found all over the world in all climates and conditions.
Characteristics
Body is metamerically segmented.
Body is jointed outwardly and bilaterally symmetrical.
A hard, non- living, exoskeleton is present.
Sexes are usually separated.
Examples: Spider, Crab, Grasshopper, Butterfly, Centipede, Millipede, etc.
Butterfly
Phylum : Mollusca
About 90000 species are known.
Characteristics
The animals are aquatic, some terrestrial forms are also known.
Body is soft unsegmented.
Coelomate animals. True coelom is present.
Body consists of a head, a foot and a dorsal visceral mass.
Respiration is done by a part of gills.
Example: Snail, octopus, cuttlefish, Squid, etc.
Squid
Snail
Phylum : Echinodermata
These are marine animals. About 5000 species are known.
Characteristics
The skin forms a hard spiny protective skeletal covering.
The alimentary canal is simple and usually complete.
They have a coelom and water vascular system.
Sexes are separated.
Nervous system is well developed consisting of a circumolar ring and radical nerves.
Example: Starfish, Sea urchin, Sea cucumber, sea lily, etc.
Protoza are unicellular organisms, having no physiological division of labour. Amoeba, Paramecium, Euglena, Stentor, stylonchia, etc. are some free living protozoa.
Characteristics of protozoa
They may be solitary, colonial or free living, aquatic parasitic.
Most of them live in water (aquatic) but some live in damp soil or inside other animal (parasitic).
Locomotion take place by pseudopodia, flagella or cilia.
Reproduction takes place mostly by means.
These constantly change the body shape.
Examples: Amoeba, Paramecium, Euglena, Entamoeba, Plasmodium, etc.
Euglena
Plasmodium
Phylum : Porifera
They live mainly in salty water. About 5,000 species are known today, commonly called sponges. These animals are referred as.
Characteristics
These are found in salty water.
These are multicellular animals.
They have cylindrical shape body.
Germinal layers are ill developed.
Inner surface has flagellate collar cells or choancocytes.
Reproduction is both sexual and asexual.
Examples: Sycon, Bath sponge, Euplectella, Glass- rope sponge, etc.
Sycon
Phylum : Coelenterates
About 10,000 species are known.
Characteristics
These are marine animals which may be solitary or colonical.
They have a hollow body like a bag.
The body is two layered (diplomatic).
The body possesses a radii symmetry.
The mouth is surrounded by tentacles which are usually thread like out growths.
Stinging cells or Nematocytes are present.
Examples: Hydra, Jelly fish, Sea anemone, Coral, pennataula, etc.
Jelly Fish
Hydra
Phylum : Platyhelminthes
About 6500 species are known. Common forms are Flukes, and Tapeworms.
Characteristics
They are commonly known as Flat worms.
They are accommodate forms.
They are bisexual.
The body is bilaterally symmetrical.
Nervous system is simple.
Examples: Liver fluke, planaria, Tapeworm, blood fluke, etc.
Planaria
Liverfluke
Phylum : Nemathelminthes
About 10000 species are known. Examples: Ascaris (Roundworm), Oxyuris (pinworm), Ancylostoma (hookworm).
Characteristics
They are commonly known as roundworms.
Body is bilaterally symmetrical.
Sexes are separate. Reproductive system is simple.
Usually parasites, some free living forms are also met with.
The nervous system is in the form of ring.
Respiratory organs and blood vascular system are absent.
Examples: Ascaris, Anylostoma, Oxyuris, etc.
Ascaris
Phylum : Annelida
About 13500 species are known.
Characteristics
The body is metamerically segmented.
The body shows bilateral symmetry.
Excretory organs are Nephiridia.
Sexes are either separate or the organism are hermaphrodite.
The body has longitudinal and circular muscles.
Examples: Earthworm, Leech, Polygordius, etc.
Phylum : Arthropoda
The word arthropoda means jointed foot. It is the largest group of animals comprising of about 700000 species. The animals of this phylum are found all over the world in all climates and conditions.
Characteristics
Body is metamerically segmented.
Body is jointed outwardly and bilaterally symmetrical.
A hard, non- living, exoskeleton is present.
Sexes are usually separated.
Examples: Spider, Crab, Grasshopper, Butterfly, Centipede, Millipede, etc.
Butterfly
Phylum : Mollusca
About 90000 species are known.
Characteristics
The animals are aquatic, some terrestrial forms are also known.
Body is soft unsegmented.
Coelomate animals. True coelom is present.
Body consists of a head, a foot and a dorsal visceral mass.
Respiration is done by a part of gills.
Example: Snail, octopus, cuttlefish, Squid, etc.
Squid
Snail
Phylum : Echinodermata
These are marine animals. About 5000 species are known.
Characteristics
The skin forms a hard spiny protective skeletal covering.
The alimentary canal is simple and usually complete.
They have a coelom and water vascular system.
Sexes are separated.
Nervous system is well developed consisting of a circumolar ring and radical nerves.
Example: Starfish, Sea urchin, Sea cucumber, sea lily, etc.
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