Two species have homologous structures. What can we infer?
A) The structures are identical.
B) The structures have the same function.
C) The species have very different ancestors.
D) The species are related by a common ancestry.
E) The structures have the same function and they are identical.

Question

Quizplus · Accepted Answer

Homologous structures in different species indicate that these species share a common ancestor. These structures may not necessarily have the same function or be identical in appearance, but their existence points to a shared evolutionary history.

Two Species Have Homologous Structures