1.

What are differences between the following: (a) Cartilaginous fishes and bony fishes; (b) Amphibia and Reptilia; (c) Aves and mammals.

Answer»

What are differences between the following:
(a) Cartilaginous fishes and bony fishes;
(b) Amphibia and Reptilia;
(c) Aves and mammals.



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