Revision history of "User:MarielBerger567"

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  • (cur | prev) 11:17, 5 October 2018MarielBerger567 (talk | contribs). . (5,041 bytes) (+5,041). . (Created page with "All living cells use the energy from food to pump hydrogen ions to a 'holding tank' behind a membrane. There's a difference in the levels of hydrogen ions high on one side of...")