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Charra [1.4K]
3 years ago
6

Please help............................

Biology
2 answers:
Dominik [7]3 years ago
8 0
D- both involve moving substances across a membrane
Reasoning:
-Active transport moves against the concentration gradient ( low to high)
-Passive transport moves higher to lower concentration
Anvisha [2.4K]3 years ago
7 0

Answer:

D

Explanation:

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Answer:

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Explanation:

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Put a 4 in the reactants to balance the iron.

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