Positive feedback mechanisms are useful for which of the following situations? A. Modulating a stimulus to stay within a defined range ·

B. Modulating a stimulus to move toward an endpoint

C. Amplifying a stimulus to move toward an endpoint

D. Amplifying a stimulus to stay within a defined range

C. Amplifying a stimulus to move toward an endpoint

Explanation:

The mechanism of inputs and outputs are operated by biological systems. It is either it is caused by an event or it is causing a certain event. Feedback is very important in this system. Feedback loops are the paths in which a change to the system brings about an alarm that actually brings a certain result. In a positive feedback loop, the product of a reaction brings an increase in the reaction. This is carried out by amplifying effects of a product (stimulus) to move toward an endpoint.

Option C is the correct answer.

explanation:

b,bacteria convert nitrates

into nitrogen gas.

d,plants and animals take in

and use nitrogen compounds.

e,bacteria break down waste    

products and return nitrogen  

to the soil.

a,bacteria convert atmospheric

nitrogen to ammonia.

c,bacteria convert ammonia

to nitrites and nitrates.

meteorologists would compare a new weather map with one 24 h old to see how fast a front is moving.