Question

a reaction in which the system responds in such a way as to reverse the direction of change in the body is ——
positive feedback mechanism
feedback mechanism
negative and positive feedback mechanism
negative feedback mechanism
clear my choice

Explanation:

Negative feedback mechanism works to reverse the change in the body. For example, when body temperature rises, negative feedback (like sweating to cool down) is activated. Positive feedback (e.g., during childbirth contractions getting stronger) amplifies change. A general feedback mechanism is too broad. And "negative and positive" is incorrect as they have opposite functions.

Answer:

D. Negative feedback mechanism