A student adds a suspension of baker's yeast cells into bread dough. When is this mixture is left in a large bowl undisturbed for several hours, the student returns to find that the bread dough has double in size. What gas molecules is responsible for this increase in dough size?

Someone me with this: a mineral' is determined by its actomic structure.

Which of the following statements about protists are true? a. they are typically found in moist environments. b. they are all unicellular. c. they have a nucleus. d. they are all multicellular.

Which statement is the best summary of the model? a-a series of aerobic and anaerobic reactions take place in cells b- the sun's energy moves through trophic levels in a food chain c-light energy is converted into stored chemical energy plants. d- food molecules are broken down in the cells if living things.