Question

Which of the following pairs of vertebrate classes are most like each other?

A) birds and fish
B) reptiles and mammals
C)amphibians and reptiles
D) fish and mammals

Answer 1

B) reptiles and mammals

Answer 2

I assume it is C) Amphibians and Reptiles, because the other choices are not very similar to each other. Also, both of these classes comprises cold-blooded vertebrate animals.