How does the human body prevent internal energy levels from becoming too low? a. The nervous system transmits feelings of hunger to the digestive system, which initiates eating.
b. The nervous system transmits feelings of fullness to the digestive system, which signals metabolism to stop.
c. The nervous system transmits feelings of hunger to the brain, which initiates eating.
d. The nervous system transmits feelings of fullness to the brain, which signals metabolism to stop.

c

Explanation:

The correct answer would be that the nervous system transmits feelings of hunger to the brain, which initiates eating.

The human stomach and intestinal tracts consist of receptors that are able to sense the presence or absence of nutrients and send messages to the brain accordingly. If there are adequate nutrients in the stomach and the intestinal tracts, the receptors send a message to the brain and the hormone that makes humans feel fullness in their stomach is released into the blood. Once the available nutrient is low, the receptors send a message to the brain which in turn releases hormones into the blood that makes humans feel the sensation of hunger.

The correct option is c.

as resources become scarce because of population growth, the growth decreases after few years due to lack of resources and food.

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