(1) why do we eat food
(2) why do we sleep
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1). A food is something that provides nutrients. Nutrients are substances that provide: energy for activity, growth, and all functions of the body such as breathing, digesting food, and keeping warm; materials for the growth and repair of the body, and for keeping the immune system healthy.
2). Just like eating, sleep is necessary for survival. Sleep gives your body a rest and allows it to prepare for the next day. It's like giving your body a mini-vacation. Sleep also gives your brain a chance to sort things out.
Answer:
We need them to survive.
Explanation:
Why do we eat food:
We digest food into energy so that our bodies move. If we don't eat, we won't have enough energy to work.
Why do we sleep:
The mechanism of sleep is still not known. Scientists found that sleep cleans residue during sleep.