The human upper arm bone (the humerus) is structurally similar to the upper wing bone of a bat. The structural similarity is an example of
A) analogous structures.
B) vestigial structures.
C) homologous structures.
D) adaptation.
E) mutation.

Question

Quizplus · Accepted Answer

The human upper arm bone (the humerus) and the upper wing bone of a bat are examples of homologous structures, which are anatomical features that are similar in structure due to shared ancestry but may differ in function.

The Human Upper Arm Bone (The Humerus) Is Structurally Similar