I wanna say the answer is B
Answer:
a pair of factors known as genes control traits, one gene comes from each parent for every tree, each trait is passed from generation to generation, when game it's are found genes separate, if there are two unalike jeans one maybe seen while the other is hidden.
Explanation:
<span>Some of the first animals to develop an endoskeleton were: echinoderms.</span>
