Nitrogen (3%) is found in many organic molecules, including the amino acids that make<span> up proteins, and the nucleic acids that </span>make<span> up DNA. Calcium (1.5%) is the most common mineral in the </span>human body<span> nearly all of </span>it<span> found in bones and teeth. Hope it helps :)</span>
Keeping your body clean helps prevent illness and infection from bacteria or viruses. Like in our example, the simple act of washing your hands regularly is an effective way to keep germs from spreading.