Homeostatic control mechanisms are typically controlled unconsciously by the

The correct answer is- the nervous system.

Explanation:

The nervous system regulates the homeostasis by controlling various organs and regulating them. Homeostasis is the ability of the body to maintain its internal environment in equilibrium.

If any particular internal system deviates from a certain set point the deviation acts as the trigger or stimuli to a receptor that transmits the nerve impulse to a control center located in the brain. Control central acts accordingly on the basis of the stimuli received and directs to an effector and specific response occur. Hypothalamus is an important part of the brain that plays very important role in homeostasis.

Thus, the correct answer is - The nervous system.