In plants, the purpose of auxins is to
a. bring about apical dominance.
b. produce phytochrome.
c. regulate abscission.
d. cause plant dormancy.
i'm leaning towards a. but am not fully

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