Which of these best describes biomes? O large ecosystems that have distinctive organisms and a particular climate
O a group of individuals of the same species that live together in the same area
O a system made up of parts that work together
O external conditions that affect an organism

How does the fermentation of pyruvic acid in cells contribute to the formation of atp? a. it completes the oxidation of glucose to co2, creating atp. b. it generates lactic acid, which cycles back through the krebs cycle, producing 2 atp molecules. c. it converts fadh2 to phosphate, which bonds with adp. d. it produces 2 nad+ molecules, which cycle back to fuel the glycolysis reaction, allowing 2 atp molecules to be produced.