What must the membrane protein do so that hydrogen ions can flow through
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a. gain water
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b. lose energy
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c. change shape
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d. reverse direction
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by cartels in other countries, shipped by air, mail, or land. i cant really see your answer choices : /

where are the choice options?

so she was walking and she stepped on warm jeffy , uh uh uhh dadye i just pooped my pants

answer; the numbers of valence electrons in the acetic acid molecule (ch3co2h) is 24;