Which statement best describes dynamic equilibrium? Select one: a. Water molecules have moved from..


Which statement best describes dynamic equilibrium?
Select one:
a. Water molecules have moved from an area of low water concentration to an area of high water concentration
b. Molecules are crossing a semi-permeable membrane at equal rates in both directions
c. Molecules have crossed a semi-permeable membrane entirely in one direction to the other side
d. Molecules have reached a dynamic state where they are no longer moving