Question

The kidneys are organs in the human body that have multiple functions. One critical function is to maintain the pH of the blood at a precise level. What biological process involves the maintenance of a constant internal environment?

Answer 1

Homeostais because its constant internal enviroment

Answer 2

The biological process is called HOMEOSTASIS.
Homeostasis is the process by which an organism maintained the constancy of its internal environment. Many organs in the body participate in regulating the internal environment of an organism. Homeostasis is very important to the survival of a living organism.