When the temperature of water is lowered, what happens to the speed of the molecules? A. they slow down

B. they speed up

C. they do not change their speed

Consider the model of the oxygen cycle on earth. the majority of earth's oxygen reservoirs are found in the a) atmosphere. b) biosphere. c) hydrosphere. d) lithosphere.

If a young male's body is just beginning the process of producing sperm, when is it likely that he would ejaculate mature, viable sperm"

Dna replication allows the basic.units of.heredity found on segments of dna called to be passed on from parent to offspring.