Humans, mice, and giraffes have seven vertebrae in their necks. What can scientists conclude from this observation?

Question

a
All vertebrates have seven vertebrae in their necks
b
Each animal independently evolved this trait.
c
These animals descended from a common ancestor.
d
Humans, mice, and giraffes have the same number of bones.

Answer 1

c. These animals descended from a common ancestor.

Answer 2

Which of the following is most chemically like Selenium (Se)?(1 point)
Responses

Sodium (Na)

Oxygen (O)

Bromine (Br)

Answer 3

AI

Answer 4

hey bot

Answer 5

bot