All vertebrate embryos have a tail and gill slits at some point during embryonic development. What does this suggest about vertebrates?(1 point)

Question

Responses

These species have the exact same DNA sequence.
These species have the exact same DNA sequence.
These species evolved in similar environments.
These species evolved in similar environments.
The embryos of these species require these structures to survive.
The embryos of these species require these structures to survive.
These species share a common ancestor.

Answer 1

These species share a common ancestor.