Although birds, fish, mammals, reptiles, and amphibians are different, evidence of their evolutionary links is provided by ____.
A)chemical analysis
B)comparison of adult body forms
C)comparison of ways in which their embryos develop
D)time of gestation
E)comparing life expectancies

Question

Although birds, fish, mammals, reptiles, and amphibians are different, evidence of their evolutionary links is provided by ____. ​
A)chemical analysis
B)comparison of adult body forms
C)comparison of ways in which their embryos develop
D)time of gestation
E)comparing life expectancies

Quizplus · Accepted Answer

Comparing the ways in which their embryos develop provides evidence of evolutionary links between different animal groups. The similarities in the early stages of embryonic development between different species suggest that they share a common ancestor.

Although Birds, Fish, Mammals, Reptiles, and Amphibians Are Different, Evidence