Which of the Following Statements About Birds and Reptiles Is

Which of the following statements about birds and reptiles is true?

A) Birds have a lower metabolic rate than reptiles.
B) Reptiles give birth to live young, whereas birds lay eggs.
C) Birds can breathe and run at the same time, whereas reptiles cannot.
D) Birds are amniotes, reptiles are not.
E) Reptiles supplement their lung action with gas exchange through their skin, whereas birds depend entirely on their lungs for gas exchange.