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Answer:
Enzymes help speed up chemical reactions in the human body. They bind to molecules and alter them in specific ways. They are essential for respiration, digesting food, muscle and nerve function, among thousands of other roles.
Positive feedback loop refers to a situation in which the process that produces a change in the body is reinforced by the change once it is underway.
<h3>What is a positive feed back loop?</h3>
The term positive feedback loop refers to a situation in which the process that produces a change in the body is reinforced by the change once it is underway. This is typified in stretching of uterine walls during child birth.
However, not all the feedback loops in the body are positive the negative feedback loops tend to stop the changes that produces them such as in homeostasis.
Learn more about feedback loops in the body:brainly.com/question/10318571
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