Question

Which of the following provides the most conclusive evidence that organisms of two different species share a common ancestor?
Select one:
a. They have similar DNA sequences
b. They have similar body movements.
c. They live in the same ecosystem
d. They reproduce at the same time.

Answer 1

The answer is A. They have similar DNA sequences, That is the only way to determine if they share a common ancestor. It´s all in the blood.

Answer 2

Answer:

The answer is a)They have similar DNA sequences

Explanation:

All similarities reflect the existence of a common evolutionary ancestor. All living beings carry the following: They have the same DNA; The same or very similar DNA; the same gene expression; The same amino acids. These shared peculiarities suggest that living beings descended from a common ancestor. All living organisms carry these characteristics because they were inherited from that ancestor