Question

Explain the feedback mechanism to regulate the action of hormone

Answer 1

Function of feed back mechanism it regulates the hormone level in our blood. 
eg- if the sugar level  gets increased in our blood immediately penicillin will secrete insulin which will reduce the sugar level in our blood .

Answer 2

you can understand the feedback mechanism by an example of calcitonin and parathormone whenever there is lack of calcium in blood calcitonin and parathormone maintain it by taking calcium from bones