When oxygen is available, a cell will begin the krebs cycle after

a. the calvin cycle.

b. glycolysis.

c. the electron transport chain.

d. none of the above

What are the doorways into and out of cells, attached to the membrane, and built in the rough er.

Which of the following is not a food produced in rainforests? a) coffee b) cocoa c) avocados d) wheat

Select the true statements about eubacteria. most live as decomposers and heterotrophs. most only thrive in a narrow range of environments. certain eubacteria are responsible for food poisoning. eubacteria thrive in extreme environments.