A membrane that stores water and expels excess water

Four types of motile cells in human body?

Were does condensation occur? a) hydroshereb) lithosherec) boishered) atmosphere

How much time has elapsed from the very beginning of "the memior of the conquistador bernal diaz del castillo" to the end? a. castillo's whole life b. a quarter of an hour c. a few weeks d. a decade