Water makes up a large percentage of the body’s cells. for a cell to remain in homeostasis, there must be a mechanism to control water changes in the cells. the movement of water from an area of high water concentration to an area of low water concentration is .

the answer would be osmosis (if that's even how you would spell it.)

Explanation:

unicellular organisms, like bacteria, are able to perform all life functions within one single cell. multicellular organisms need many different types of cells to carry out the same life processes. each of these special types of cells has a different structure that it perform a specific function.

when it is at an intermediate population density