Answer:
A
Explanation:
well i guess it also depends on what environment you are talking about too
The body needs to maintain the amount of oxygen that reaches our cells. If we exercise a lot, our breathing rate increases. More oxygen enables our cells to <span>more quickly respire aerobically, so that our muscles can contract more rapidly.
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After 9 hours it will be 4000
Answer:
I think its a
Explanation:
cars and stuff use fossil fuels, therefore changing transportation may reduce its fossil fuel usage.
A) cellular respiration because fermentation takes place without oxygen(anaerobic)
