Write the character on the basis of which animals are classified into vetebrates and invertebrates.
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Animals with an internal skeleton made of bone are called vertebrates. They are classified into five groups, that is, fish, amphibians, reptiles, birds, and mammals. The invertebrates are multicellular. They have no back bone or cell walls and reproduce sexually.
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so the character stics are
vertebrae
animal who have a back bone / spinal cord are known as vetebrabe
EX:- elephant , tiger
invertebrate
animal who didn't have back bone / spinal cord are known invertebrate
EX:- cockroach , earth worm
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