Please, help me answer these questions. They are for my Human Anatomy and Physiology course. Need it in an hour

Please, help me answer these questions. They are for my Human Anatomy and Physiology course. Need it in an hour

and half. Thank you in advance!1. Distinguish convergent vs. divergent. Give a good example for each term.

2. What is a negative feed back mechanism? Which two processes in your body utilize negative feed back mechanism?

3. What is a positive feed back mechanism? Which two processes in your body utilize positive feed back mechanism?