Answer:
Why are cells small? because they can absorb nutrients much more efficiently. Because they are smaller they can efficiently absorb enough food. When a cell doubles in size the volume increases much more then the surface area, which is why large cells cannot receive enough food efficiently for their volume.
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A mountain lion should have wider bone rings because it has a higher metabolic rate, and thus a faster growth rate
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<span>It Provides Energy to pump hydrogen atoms
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I may not know the anser cause i am stuck on the same problem and pepole say this would be answered under 10min