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OpenStudy (anonymous):
Which of the mechanisms listed below requires energy? A. endocytosis B. diffusion of oxygen into a red blood cell C. osmosis of water across the cell membrane D. facilitated diffusion of ions through a protein channel
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OpenStudy (nellynell2142):
I'm 98% sure it's A. :) pls give medal.
OpenStudy (anonymous):
Okay, I'll give a medal if it's right :)
OpenStudy (nellynell2142):
okay. :)
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