Which of the following is an example of an ancestral homology?
A. Almost all modern reptiles, birds and mammals have forelimbs, a trait they also share with contemporary amphibians.
B. The first birds and all their descendant species have feathers, a trait that is unknown in any other group.
C. Humans and many insect species have eyes.
D. All of the above.
Answer:A
Which of the following is an example of an ancestral homology?
A. Almost all modern reptiles, birds and mammals have forelimbs, a trait they also share with contemporary amphibians. B. The first birds and all their descendant species have feathers, a trait that is unknown in any other group. C. Humans and many insect species have eyes. D. All of the above.