Why do humans need air?
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To understand that human beings (as well as other animals) perform the respiration process because we need air to breathe and because oxygen is ultimately the fuel that allows our cells to produce energy from the food we eat.
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Answer:
To understand that human beings (as well as other animals) perform the respiration process because we need air to breathe and because oxygen is ultimately the fuel that allows our cells to produce energy from the food we eat.
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