The answer is A
Using energy
Insulin lowers blood sugar from the body so that yôu don't get sick
<span>The scientist who melted glass to simulate a microscope was Robert Hooke, in 1660. He was an English physicist, and he looked at insects and handheld objects. He named the cell for the cell of a monk, because to him it appeared to be a self-contained room.</span>
The human heart has only 4 chambers. Left and right atria and left and right ventricles.
