Which of the following explains the inversion of the aquatic pyramid of biomass? a. high phytoplankton turnover rate b. slow aquatic predator metabolisms c. small number of aquatic consumers d. high energy content of phytoplankton

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