Humans, mice, and graffies have seven vertebrae in their necks. Wut can scientist conclude from dis observation?

Question

A ) Humans, mice, and griaffes have da same number of bones

B ) Each animal independently envloved dis trait

C ) These animals descended from a common ancestor

D ) All vertebrates have 7 vertrebrea in their necks

Answer 1

Based on the observation that humans, mice, and giraffes all have seven vertebrae in their necks, scientists can conclude:

C) These animals descended from a common ancestor.

This conclusion is supported by the idea that the shared trait of having seven cervical vertebrae likely originates from a common ancestor, which is a principle in evolutionary biology. The option suggesting that all vertebrates have seven cervical vertebrae (D) is incorrect, as there are exceptions among different species.