What is the process by which the product of a system shuts down the system or limits its operation?

Question

This is in Biology! Not computers! Helppp! I love youu! Thanks.
-Keeshh.

Answer 1

Negative feedback.

-Here's what Wikipedia says:

Negative feedback (shortened to NFB) is a type of feedback in which the system responds in an opposite direction to the perturbation. It is a process of feeding back to the input a part of a system's output, so as to reverse the direction of change of the output. This tends to keep the output from changing, so it is stabilizing and attempts to maintain constant conditions. This often results in equilibrium (in physical science) or homeostasis (in biology) such that the system will return to its original setpoint automatically.

In contrast, positive feedback is a feedback in which the system responds in the same direction as the perturbation, resulting in amplification of the original signal instead of stablizing the signal. Both positive and negative feedback requires a feedback loop to operate, as opposed to feedforward, which does not rely on a feedback loop for its control of the system.

Examples of the use of negative feedback to control its system are: thermostat control, phase-locked loop, hormonal regulation, and temperature regulation in animals.

Answer 2

Feedback inhibition.

Answer 3

decreased metabolism?