i think the answer is because the cell membrane acts as a protecter for cells. It also moves liquds and since it does move liquids it wouldn't desolve from it.
For the answer to the question above, I believe the answer to this is <span><u><em>"The growing population is taxing Earth's resources which could lead to the extinction of many species."</em></u></span> I hope my answer helped you. Have a nice day!