The structure is a phospholipid bilayer. There are many phospholipids which contain a water loving phosphate end and a water hating lipid (fatty) end. The phosphate ends all point out words while the fatty ends are inside.
The purpose is protection of the cell as well as allowing certain molecules to enter and exit the cell
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Musculus is the latin word for muscle
That would be a saturated lipid.
Hope this helps.
Dumb isn’t necessarily a human characteristic. i suppose it will depend on the context.