D it is found within all the organs of the body
Answer:
They are in a fixed ratio
Explanation:
Answer:
Explanation:Nitrogen is a naturally occurring element that is essential for growth and reproduction in both plants and animals. It is found in amino acids that make up proteins, in nucleic acids, that comprise the hereditary material and life's blueprint for all cells, and in many other organic and inorganic compounds.
Answer:
Digestion, distribution of nutrients throughout the body, and it can serve as a hydrostatic skeleton.