Which of the following correctly describes the arrangement of the phospholipids in the lipid bilayer of the cell membrane? * Phospholipids line up head to head, so the phosphate heads are separated from water.
Phospholipids line up head to tail, because opposites attract.
Phospholipids line up tail to tail, so the fatty acid tails are separated from water.
Phospholipids line up with no pattern, because they're molecules which move randomly.

Sara goes on a slingshot ride in an amusement park. she is strapped into a spherical ball that has a radius 3*10^2 of centimeters. what is the volume of air in the spherical ball? use this formula: volume of a sphere=4/3pi,r^3 , where r is the sphere’s radius.

The direct energy source that drives atp synthesis during respiratory oxidative phosphorylation is

First idea: suddenly, women were leaving their homes to cycle and socialize on country roads and city streets. —wheels of change, sue macy second idea: it was not a stretch for some cyclists to see the possibility of a larger role for women in the world. —wheels of change, sue macy what type of graphic organizer would best represent the connection between these two ideas? 1) a t-chart that separates ideas into two different categories 2) a chronology that shows 3) a sequence of several events a cause-and-effect graphic that shows how one idea led to another 4)a problem-solution graphic that presents a problem and a solution to the problem