Consider species A, B, and C, who share a knuckle-walking common ancestor. Species A and B are bipedal. Species C is a knuckle walker. Which of the following is most likely to be true?
A) A and B are more closely related to each other than to C.
B) A and C are more closely related to each other than to B.
C) C and B are more closely related to each other than to A.
D) There is not enough information to determine the most likely relationship.

Question

Quizplus · Accepted Answer

Since A and B are both bipedal and share a common ancestor, they are more likely to be closely related to each other than to C, who is a knuckle-walker.

Consider Species A, B, and C, Who Share a Knuckle-Walking