Question

describe positive feed back mechanism ​

Answer 1

Positive feedback is a process that occurs in a feedback loop in which the effects of a small disturbance on a system include an increase in the magnitude of the perturbation. A positive feedback mechanism is the exact opposite of a negative feedback mechanism. ... In a positive feedback system, the output enhances the original stimulus. A good example of a positive feedback system is child birth. During labor, a hormone called oxytocin is released that intensifies and speeds up contractions.


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