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Biology, 20.12.2020 14:00 kayranicole1

Why do concentration gradients exist? A. To differentiate the organelles from the molecules.
B. To contrast between the high and low concentration of molecules.
C. For cells to reach exocytosis
D. For molecules to undergo facilitated diffusion.

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Why do concentration gradients exist? A. To differentiate the organelles from the molecules.
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