Question

the image below show the skeleton of a monkey and the vertebrae or backbone of a human. At the end of the monkey backbones are is a single bone called the coccyx. What type of structure is the coccyx and what does it indicate about the relationship between monkey and humans?
A. Analogous structure; Indicates that monkeys and humans evolved to have tailbones with similar functions.
B. Mutation; indicates that through mutation, monkeys were able to develop tails while humans are not.
C. Embryonic structure; indicates that monkeys were able to develop tails.

Answer 1

D. Vestigial structure; indicates that monkeys and humans shared a common ancestor that had a tail.

Answer 2

do you have the picxture?

Answer 3

Yeah. It's this

Answer 4

hmmmm

Answer 5

D

Answer 6

Humans and primates (and monkeys) shared a common ancestor that first developed the coccygeal bones as a mutation. In later iterations it slowly fused into one bone in humans, but in some monkeys was extended to form a fully prehensile tail.

Answer 7

The tail bone is important for balance and blood vessel management. comparable structures exist in most higher mammals and its evolutionary history can be traced even farther back.

Answer 8

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