why are these structures vestigial?

Question

Need help for our biology class. Why are the following structures vestigial? (Individual answers for each . . . for example, the appendix is vestigial because...., teh coccyx is vestigial because...., the little toe is vestigial because,etc.) -Appendix -Coccyx (tail bones) -Muscles that move ears -Muscles that make hair stand up -Little toe -Wisdom teeth

Answer 1

The human vermiform appendix is a vestigial structure; it no longer retains its original function.

I'm sure that you can take it from there..........................