The main purpose is protection. The lipid bilayer protects the cell from viruses and other threats to the cell. It also maintains homeostasis within the cell by monitoring the amount of substances the enter or exit the cell.
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The interaction of heredity and the environment works to shape who children are and who they will become. The complex interaction of nature and nurture does not just occur at certain moments or at certain periods of time it is persistent and lifelong.
I don't think so much for all your friends and family
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I think it is d
Hope this help and I'm sorry if I'm wrong.