Question

Which of the following describes a positive feedback loop?

Answer 1

The correct answer to the question being presented above would be the third sentence of the choices. The situation wherein 'a pregnant woman begins to go into labor, the body sends hormones that increase the intensity of the labor contractions.' describes a positive feedback loop.

Answer 2

Answer;

An example of positive feedback loop is;

-When a pregnant woman begins to go into labor, the body sends hormones that increase the intensity of the labor contractions.

Explanation;

-Feedback loops are therefore the process whereby a change to the system results in an alarm which will trigger a certain result. The result will  then either increase the change to the system or reduce it to bring the system back to normal.

-Feedback loops are important because they allow living organisms to maintain homeostasis (maintenance of internal environment of the body constant).

-A positive feedback loop occurs in nature when the product of a reaction leads to an increase in that reaction.  It moves a system further away from the target of equilibrium, by amplifying the effects of a product or event and occurs when something needs to happen quickly.