Phospholipid bilayers are critical components of cell membranes. The lipid bilayer acts as a barrier to the passage of molecules and ions into and out of the cell. However, an important function of the cell membrane is to allow selective passage of certain substances into and out of cells.
Mitosis should be the answer. if not that, then cell division. hope this helps :3
Pollution, burning fossils, undrinkable water
Nucleotides are the subnit that is polymerized (associated into a long chain) to make nucleic acids. (DNA and RNA) Nucleotides comprise of three littler parts: a ribose sugar, a nitrogenous base, and phosphate base.
