The similarity of the embryos of chickens and humans is evidence of ________.
A)artificial selection
B)common ancestry
C)genetic drift
D)decreased genetic variation

Question

Quizplus · Accepted Answer

The similarity of the embryos of chickens and humans is evidence of common ancestry. This is because the embryos of both species share many of the same features, such as a head, a tail, and a spinal cord. This suggests that both species evolved from a common ancestor that had these features.

The Similarity of the Embryos of Chickens and Humans Is