Answer:
The phylum chordata (animals with backbones) is divided into five common classes: fish, amphibians, reptiles, mammals and birds.
Fish. The body of the fish is covered in scales and has fins attached to help it move through the water. ...
Amphibians. The skin of amphibians is very thin and must always be kept wet because amphibians breathe through their skin. ...
Reptiles. The body of a reptile is covered in hard scales. ...
Birds. ...
Mammals.
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Answer:
The phylum chordata (animals with backbones) is divided into five common classes: fish, amphibians, reptiles, mammals and birds.
Fish. The body of the fish is covered in scales and has fins attached to help it move through the water. ...
Amphibians. The skin of amphibians is very thin and must always be kept wet because amphibians breathe through their skin. ...
Reptiles. The body of a reptile is covered in hard scales. ...
Birds. ...
Mammals.