Which of the following statements best describes diffusion?
A) the net movement of water through a selectively permeable membrane, from a region of greater water concentration to a region of lesser water concentration
B) the net movement of substances from a region of lesser concentration to one of greater concentration
C) the net movement of substances from a region of greater concentration to one of lesser concentration
D) None of the listed responses is correct.
C
Explanation:
A) The net movement of water through a selectively permeable membrane is osmosis.
B) Diffusion is the net movement of substances from a region of greater concentration to one of lesser concentration.
D) Diffusion is the net movement of substances from a region of greater concentration to one of lesser concentration.
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