Q. 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
Explanation
Almost all modern reptiles, birds and mammals, have forelimbs means, they all have same basic plan of the structure but they perform different functions. This phenomenon is called ancestral homology
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.