Nitrogen in plants, animals and microbes
Nitrogen in human, animal, plant and microbial Mary or smaller creatures can get from food eaten or absorbed into the body cells. And a change in the form of amino acid composition of proteins in the cell. When an organism dies, goes into the decomposition process. And further back into the nitrogen cycle.
The nitrogen cycle is divided into three parts.
1. The primary nitrogen / nitrogen source. A source of nitrogen found in the air.
2. The secondary nitrogen / nitrate decomposition. Nitrogen is found in soil, rock and water.
3. tertiary nitrogen / nitrate nitrogen found in living organisms, such as humans, animals, plants and microorganisms