The Coccyx,a Tiny Tailbone Found in Humans,is Believed to Be

Question

The coccyx,a tiny tailbone found in humans,is believed to be a ________ structure.
A) terminated
B) vestigial
C) rudimentary
D) redundant

Accepted Answer

The term "vestigial" refers to a structure that has lost some or all of its original function in the course of evolution. In humans, the coccyx is thought to be a vestigial structure because it is small and serves no apparent purpose. It is believed to be a remnant of a tail that our ancestors possessed millions of years ago.