I believe the answer is protein
Your answer is D. Nucleotide
C no because many species went extinct without leaving fossils behind
Answer:
Two genes.
There are two change gatherings:
Changes 1,2,4, and 7 didn't supplement one another, and thus are on a similar quality.
Changes 3, 5 and 6 didn't supplement one another, however supplemented with transformations 1, 2, 4, and 7. Thus, these three transformations are available together on an alternate quality.
The letter I is just there. Blood type problems will usually have

and

= blood type A

and

= blood type B

would be blood type AB
<span>

would be blood type O.
</span>
So the answer would be B since B is the only option that the offspring would be only blood type B, which is the same as their parents.