Osmoregulation is the process by which living organisms maintain the balance of water and solutes in their bodies. This regulation is crucial for cellular function and overall homeostasis. Organisms, such as humans and fish, use various mechanisms to control the concentration of salts and water, ensuring that their internal environment remains stable despite changes in external conditions. In humans, osmoregulation primarily occurs in the kidneys, which filter blood and adjust the levels of water and electrolytes. Other organisms, like plants, regulate water through structures called stomata and by adjusting root absorption. These processes help prevent dehydration and maintain optimal physiological conditions.