Which statement best explains why cells separate and expel waste?
a. it releases energy necessary for organisms to survive
b. it helps in growth and repair of cells of organisms
c. it helps remove toxins from the body to maintain homeostasis
d. it helps break down glucose into useful energy in plants

Describe the change in phase and temperature as water moves from the oceans to the atmosphere and then returns to earth again as rain. a) evaporation : temperature increases; condensation : temperature decreases; precipitation (rain) : temperature decreases b) evaporation : temperature increases; condensation : temperature decreases; precipitation (rain) : temperature increases c) evaporation : temperature decreases; condensation : temperature decreases; precipitation (rain) : temperature decreases d) evaporation : temperature increases; condensation : temperature increases; precipitation (rain) : temperature decreases