Which Vestigial Structure Found in Humans is Best Explained by Our

Question

Which vestigial structure found in humans is best explained by our evolutionary heritage?
A) tailbone
B) lack of body hair
C) upright posture
D) opposable thumb

Accepted Answer

The tailbone, also known as the coccyx, is a vestigial structure that serves no functional purpose in humans but is a remnant of our evolutionary ancestry, as many mammalian species have tails.