4. The images below show the skeleton of a monkey and the vertebrae or backbone of a human. At the end

Question

of the monkey backbone are tailbones. At the end of the human backbone is a single bone called the
coccyx. What type of structure is the coccyx and what does it indicate about the relationship between
monkeys and humans?
(1 point)
analogous structure; indicates that monkeys and humans evolved to have tailbones with similar functions
mutation; indicates that through mutation, monkeys were able to develop tails while humans could not
embryonic structure; indicates that monkeys and humans go through similar embryonic changes
vestigial structure; indicates that monkeys and humans shared a common ancestor that had a tail***

Answer 1

Agree.
The Tailbone: Grandpa didn't have a tail, but if you go back far enough in the family tree, your ancestors did. Other mammals find their tails useful for balance, but when humans learned to walk, the tail because useless and evolution converted it to just some fused vertebrae we call a coccyx.

Answer 2

You are correct

Answer 3

oop