Shyprincess123456 Shyprincess123456

12-11-2016
Biology

contestada

how is a factory gate and doors like a cell membrane?

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kyliamarable18 kyliamarable18

12-11-2016

the cell membrane lets in stuff and gets rid of the bad stuff

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needhelp1967 needhelp1967

12-11-2016

It lets the good stuff come in and the bad stuff out

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