Markale13 Markale13

18-10-2016
Biology

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A cell's membrane is composed of two layers of lipid molecules. What is the main function of a cell membrane? A. store energy for later use B. direct the functions of the cell's organelles C. construct long chains of amino acids D. control what enters and exits the cell

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briyer123 briyer123

18-10-2016

D. control what enters and exits the cell

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