The presence of vestigial organs supports evidence of evolution because
A) the vestigial organ is unique to one species.
B) the vestigial organ is similar to a functional organ in a related species, having been passed down from a common ancestor.
C) both the vestigial organ and the functional organ perform the same function.
D) the vestigial organ could not have been passed down from an ancestor.
E) the vestigial organs represent variation in a species.

Question

Quizplus · Accepted Answer

Vestigial organs are remnants of organs that had a function in ancestral species but are now reduced or non-functional in the current species. Their presence supports the idea of evolution because they indicate a common ancestry with species in which the organ is still functional. This shows a historical connection and evolutionary change over time.

The Presence of Vestigial Organs Supports Evidence of Evolution Because