Human Body Ingredients via imaginaryfoundation: 'The average human has approximately 100 trillion cells and each cell is made of approximately 100 trillion atoms, each of which were originally created in the center of a star.' Here it is by mass: http:/
17 Things you should know about DNA (Infographic). It's the basic building block of all life but what do you really know about it? See how you compare to other humans and crack the genetic code with this informative infographic.