Along with water, urine also contains
1-A. salts
2-B. food
3-c. rectum

I searched it up and all I know it says A. Salt

Iwould say silver and gold

Cell division is important to single celled organisms because it allows the cells to reproduce. through cell division, cells make exact copies of themselves. when single celled organisms go through cell division, they make exact copies of themselves which is how they reproduce.