toniosalazar03 toniosalazar03

03-02-2016
Biology

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what is a protective layer around all cells that controls the movement of materials into and out of the cell

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ashlynjayde2003 ashlynjayde2003

03-02-2016

i think the cell membrane is the answer

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crystal3184 crystal3184

03-02-2016

the cell wall controls what goes in and out of the cell

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