Anonymous
The answer depends on what you would actually like to know and without that information it is difficult to answer your question. For example, you may want to know the most abundant elements in the human body, the principal kinds of biomolecule in humans, the 200+ kind of human cells, the different tissues in the human body, what organs does the human body has or what are the human body's organ systems.
DragonsREpic
Meat
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By far, the most common elements in a human body are carbon, hydrogen, oxygen, nitrogen, phosphorus, and sulfur. A great deal of the hydrogen and oxygen are found in the water that makes up about 70% of the body's mass, and carbon compounds (such as proteins) are everywhere.