2. A heart attack occurs when an artery in the heart is blocked, restricting the flow of blood. Why would a heart attack be accompanied by feeling short of breath? (6 points)​

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