The existence of the phenomenon of exaptation is most closely associated with which of the following observations that natural selection cannot fashion perfect organisms?
A) Natural selection and sexual selection can work at cross-purposes to each other.
B) Evolution is limited by historical constraints.
C) Adaptations are often compromises.
D) Chance events affect the evolutionary history of populations in environments that can change unpredictably.

Question

Quizplus · Accepted Answer

Exaptation refers to the process by which structures or traits that evolve for one function are later co-opted for a new, different function. This phenomenon is often explained as a result of historical constraints, where natural selection works with what is already available rather than creating new adaptations from scratch. This suggests that natural selection cannot fashion perfect organisms, as adaptations are the result of trade-offs and compromises.

The Existence of the Phenomenon of Exaptation Is Most Closely