A positive feedback mechanism:
A)can only be beneficial to the body
B)is the most common type of feedback mechanism
C)needs an external event to control it
D)is needed for digestion

Question

Quizplus · Accepted Answer

Positive feedback mechanisms often require an external event or intervention to halt their cycle, as they amplify or increase the action of a system. This is unlike negative feedback mechanisms, which are more common and inherently include a method for halting their own process once the desired state is achieved. Positive feedback mechanisms are not exclusively beneficial, nor are they the most common type of feedback mechanism. While they can play roles in various physiological processes, including aspects of digestion, stating they are needed for digestion broadly is inaccurate, as digestion primarily involves negative feedback mechanisms for regulation.

A Positive Feedback Mechanism