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Biology, 02.09.2019 16:00 brittainpolk453

Which definition is the best for “semipermeable membrane”?
a. it is a barrier that prevents materials from moving from one side to the other.
b. it is a barrier that allows materials to move freely from one side to the other.
c. it is a barrier with tiny openings that let some, but not all, materials pass through. d. it is a barrier that materials move from one side to the other.

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Which definition is the best for “semipermeable membrane”?
a. it is a barrier that prevents...

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