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Brums [2.3K]
3 years ago
10

Active transport occurs when molecules are moved across a semi-permeable membrane and

Biology
2 answers:
lana66690 [7]3 years ago
8 0

I think the answer is B UP

Otrada [13]3 years ago
6 0

the answer would be B (up)

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I think the answer is A
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