Humans have a lot of homologous structures in common with other animals, and several of these structures are no tonger in working order in human bodies. These nonfunctioning structures are called vestigial structures. They still show evidence of common ancestry, but they do not do the same things in humans as they do in other animals.

Listed below are mostly vestigial structures. Select the one that serves a purpose in humans.

It is difficult to provide a specific answer without a list of options to choose from. However, one example of a structure that is often considered vestigial in humans but still serves a purpose is the appendix. While the function of the appendix is not fully understood, it is believed to play a role in the immune system and gut health.