tyreerothwell1or4q8w tyreerothwell1or4q8w

12-06-2017
Biology

contestada

The cell membrane is made up of _____.

1- a double layer of cellulose
2- a single layer of cellulose
3- a double layer of protein
4- a double layer of phospholipids

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budwilkins budwilkins

19-06-2017

4- a double layer of phospholipids

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