Humans, mice, and giraffes have seven vertebrae in their necks. What can scientists conclude from this observation? (1 point) Responses All vertebrates have seven vertebrae in their necks. All vertebrates have seven vertebrae in their necks. Each animal independently evolved this trait. Each animal independently evolved this trait. Humans, mice, and giraffes have the same number of bones. Humans, mice, and giraffes have the same number of bones. These animals descended from a common ancestor.
