Answer:
A
Explanation:
From what I know this could be wrong, but in the four stages of natural selection, the first step is overproduction, the second step is adaptation, and the third step is competition or survival of the fittest. This means that only the organisms with the best adaptations for their surroundings will survive. COULD BE WRONG SORRY IF IT IS
For the answer to the question above,<span> I think the answer is simply because the X chromosome is obtained from both father and mother. they are not now both mixed and it's almost impossible to study the x chromosome patterns only</span>
A phenotype is a "set of observable characteristics of an individual"
hope this helps :D
The blood becomes oxidized, and maintains the level of oxygen in to the level of oxygen out, which is homeostasis.
