Question

Question

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.

Humans, mice, and giraffes have the same number of bones.
Humans, mice, and giraffes have the same number of bones.

Each animal independently evolved this trait.
Each animal independently evolved this trait.

These animals descended from a common ancestor.

Answer 1

The correct conclusion based on the observation that humans, mice, and giraffes all have seven vertebrae in their necks is:

These animals descended from a common ancestor.

This suggests a shared evolutionary trait, indicating that these animals share a common ancestor that also had seven cervical vertebrae.