Stakes have been set 50 feet apart. There is a 1 foot rise from stake 1 to stake 2 Determine the percent slope. Is it nearly level, gently sloping, sloping, or is it moderately steep?

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