The human appendix is an example of a(n):

Question

Quizplus · Accepted Answer

A vestigial structure is a structure that no longer serves a function in the organism, but is a remnant of a structure that did serve a function in an ancestor. The human appendix is considered vestigial because it is a remnant of a larger cecum, which was used in our herbivorous ancestors to digest plant matter. In humans, the appendix no longer serves this function and is thought to have a minor immune function at best.

The Human Appendix Is an Example of A(n)