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Most animal cells membranes have proteins that pump ions out of the cell and potassium ions into the cell
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Which of the following structures is a double layer of phospholipids with proteins? a: cytoplasm b: cell membrane c: ribosome d: cell wall
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¿cual esta fuera de grupo? A. bacterias y Arqueas, B. Celula animal y vegetal, C. Espermatozoide y O...