Summarize the roles of evaporation, sublimation, and condensation in the water cycle.

Which of the following are false concerning microbes? a. microbes generate oxygen through photosynthesis.b. the primary role of microbes on the planet involves causing disease in animals and humans.c. microbes produce vitamins in the intestines.d. microbes play a role in breaking down waste and decomposing dead organisms.

Construct an explanation about the function of mitosis for multicellular organisms

Ascientific idea becomes valid when it is what?