Three chronic marijuana users—a "light" user, a "moderate" user, and a "heavy" user—stop using marijuana. before quitting, all three experienced abnormal blood flow in their brains. several weeks later, blood flow in their brains had most likely:

Sand spinifex grass is adapted to growing on sand dunes. it is a rapidly spreading plant and the creeping runners produce new root systems. which of these best explains the benefits of these features? a. it limits water loss through the leaves. b. it provides support by anchoring the plant. c. it protects the plant from predators. d. it allows the plant to tolerate salt. reset submit

If a cell's main function is to produce proteins to be excreted, which organelles would you expect to be larger

Waianapanapa beach in hawaii is a black-sand beach that was formed by waves crashing against volcanic rock. the sand can be very hot on sunny days. which statement best explains why? o a. the black sand has no heat capacity. b. the black sand absorbs no radiation. o c. the black sand is immune to insolation. d. the black sand has a low albedo.