Question

what have scientist learned about the classification of amphibians, birds, and reptiles by studying their evolutionary relationships?

Answer 1

Reptiles are more closely related to birds than amphibians. Reptiles and birds are so closely related that according to modern classification, they are part of the same group.

Step-by-step explanation:

Answer 2

Scientists learned many things in studying and defining organisms or animals into group. The study behind this is called Taxonomy. This study is responsible for the classification of amphibians, birds, and reptiles. The study learned about the evolutionary relationships between the living and extinct organisms.