Evo

I am made up of atoms and mostly water. I have bones, a vascular system, one heart (which is customary), two eye, two arms, two legs, and one head. I breath air, and eat food. Sometimes I sleep, other times I do not. Mostly I hang on to the skin of a large object that rotates around a sun at 25000 miles an hour and hope that I do not fly off into space.