Answer:
<em>hope</em><em> </em><em>it</em><em> </em><em>helps</em><em> </em><em>you</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em>
Glycolysis is the first stage of cellular respiration that occurs in the cytoplasm of animal cells. It is the only stage that occurs outside of the mitochondrion.
Environment, genetics, selective breeding, random mating, random fertilization, recombination, crossing over, etc