The answer is skin cells. Other cells, like nerve and brain cells, divide much less often.
Some strategies can be outlining concepts, role playing, games,
The Fluid Mosaic Model states that membranes are composed of a Phospholipid Bilayer with various protein molecules floating around within it. The 'Fluid' part represents how some parts of the membrane can move around freely, if they are not attached to other parts of the cell.