Final answer:
Negative and positive feedback mechanisms are regulatory mechanisms used in biology to maintain homeostasis. Negative feedback mechanisms work to reverse or counteract changes in the body, bringing it back to a set point. Positive feedback mechanisms amplify or enhance changes in the body, moving it further away from a set point.
Step-by-step explanation:
Negative and positive feedback mechanisms are regulatory mechanisms used in biology to maintain homeostasis. Negative feedback mechanisms work to reverse or counteract changes in the body, bringing it back to a set point.
They are more common in the human body and are involved in processes like temperature regulation, blood sugar regulation, and hormone secretion.
Positive feedback mechanisms, on the other hand, amplify or enhance changes in the body, moving it further away from a set point. They are less common but can be observed in processes like childbirth and blood clotting.