All of the statements about vertebrate embryos are true EXCEPT all vertebrates embryos A) develop a tail. B) develop some type of limbs from buds. C) become warm-blooded animals as they develop. D) have segmented bodies at some point during development.

C) become warm-blooded animals as they develop.

Explanation:

Warm-blooded organisms can be described as organisms which can maintain their internal body temperature constant even when the temperature outside fluctuates. On the other hand, cold-blooded organisms can be described as organisms which cannot maintain their internal body temperatures constant.

Not all vertebrates are warm-blooded. Vertebrates, like crocodile, are cold-blooded and hence the statement C is not true. There are many reptiles, amphibians and fishes which are cold-blooded and cannot maintain their body temperatures.