I agree with Lilly and in order to get that energy you will need food. In order to digest that food you with need your organ system and in that organ system is the digestive system which brings the nutrients to the circulatory system which includes the heart and blood vessels and arteries.
<span>The two types of cell cycle genes that, if mutated, cause cancer cells to divide uncontrollably are called tumor suppressor genes and proto-oncogenes</span>
