The process by which the amount of water and solutes in the blood is controlled is known as
The process by which the amount of water and solutes in the blood is controlled is called osmoregulation.
Osmoregulation is the process by which living organisms maintain a balance of water and solutes within their bodies. In animals, the kidneys play a crucial role in osmoregulation, regulating the concentration of solutes such as sodium and potassium ions in the blood, as well as the amount of water that is retained or excreted.
In plants, osmoregulation involves the movement of water and solutes in and out of the plant cells to maintain turgor pressure, which helps keep the plant rigid and upright.
Therefore, the correct answer is osmoregulation.