When athletes run long distances, their muscles become fatigued due to a lack of oxygen. Which process helps athletes generate more energy to continue running?
O aerobic respiration
anaerobic respiration
chemosynthesis
Ophotosynthesis

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explanation:

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the answer is: reproductively

i think i spelled it wrong lol

anyways hope i

-lavira: )

many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.

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