Three red square pieces of wood, four yellow square pieces, and five blue square pieces are put into a cloth bag. Four red round pieces, two yellow round pieces, and three blue round pieces are also put into the bag. All the pieces are then mixed about. Suppose someone reaches into the bag (without looking and without feeling for a particular shape piece) and pulls out one piece.
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Which part of the cell is affected by the movement of molecules through diffusion, osmosis and active transport?
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Three red square pieces of wood, four yellow square pieces, and five blue square pieces are put into...
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