When oestrogen concentration is high it stimulates the release of LH. LH stimulates the ovaries to release more oestrogen. State whether this is an example of negative or positive feedback and name which organs are involved. Explain your answer.

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Positive feedback loops involve a condition that triggers an effect. The effect stimulates or increases the initial condition. Such feedback loops occur in biological systems and in the physical world. A simple example of a positive feedback loop is the relationship between global temperature and sea ice. As the earth warms, sea ice melts. Ice gives way to the open ocean. Ice reflects sunlight, while ocean water absorbs it. A greater area of open...

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