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OpenStudy (nbarrera):
WILL GET MEDAL!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Which mechanism requires energy? A. diffusion of ions through a potassium channel B osmosis C exocytosis D diffusion of oxygen into a red blood cell
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OpenStudy (nbarrera):
HELP!!!!!!!!!!!!!!!!!!!!
OpenStudy (anonymous):
a
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