Fish, reptiles, amphibians, birds, and mammals are all vertebrates. Fish, reptiles, and amphibians are cold-blooded animals. They're cold-blooded like fish and amphibians. Unlike amphibians, they have lungs and breathe oxygen from the air from the time they are hatched from their eggs.
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Answer:
Fish, reptiles, amphibians, birds, and mammals are all vertebrates. Fish, reptiles, and amphibians are cold-blooded animals. They're cold-blooded like fish and amphibians. Unlike amphibians, they have lungs and breathe oxygen from the air from the time they are hatched from their eggs.
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