Annie's mother pays her $5 for every book she reads. annie is reading like crazy, not because she loves books, but rather because she enjoys spending her money on candy and toys. annie is demonstrating motivation.

Cells a and b are the same size and shape, but cell a is metabolically quiet and cell b is actively consuming oxygen. oxygen will diffuse more quickly into cell because . b the oxygen molecules inside cell b have a higher kinetic energy b. a its membrane transport proteins will not be saturated c. a the diffusion gradient there is shallowerd. b the diffusion gradient there is steeper