Th a prace for sleeping.
12. which of the following is an example of a parasite?
a. worm in your intestine c. bee stinger in your arm
b. a lion hunting zebras
d honeybee on a flower

The current thought on the structure of the cell membrane is: a. a static phosphate sandwich of lipids b. a fluid-mosaic of phospholipids and proteins c. a bilayer of proteins with static lipid molecules d. an impermeable bilayer of protein molecules e. a static and permeable phospholipid single layer