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

a concentration gradient.

A)down
B)up

User Sudee
by
8.6k points

2 Answers

1 vote

I think the answer is B UP

User Filype
by
8.3k points
2 votes

the answer would be B (up)

User Silambarasan R
by
7.7k points

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