Why do plants have a slow transport system?

Which element provides strength to the exoskeleton of clams and oysters

Why does it matter if osmosis is put into a “scab” or a “nosebleed? ” where would that leave him?

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