Answer:
environmental factors such as resources available
Explanation:
I would think its A. the rest of the options are for people that can stand still and focus.
What? Is this a serious question?
Answer: ( D ) Your cells would not work as well because even though they would have enough oxygen molecules from the air, they would not have enough glucose molecules from food.
Explanation: Your cells would have molecules from air, but would not get enough molecules from food.
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