Which words complete the paragraph correctly? Diffusion can be described as the net movement of particles from an area of ....1.... concentration to an area of ....2.... concentration, with movement occurring ....3.... a concentration gradient.
- A1 higher, 2 lower, 3 down
- B1 higher, 2 lower, 3 up
- C1 lower, 2 higher, 3 down
- D1 lower, 2 higher, 3 up