Why is the term “fluid mosaic model used to describe the cell membrane

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.

instead of copying and pasting things off of tests or work done on computer which im sure you did, try and read over the question carefully