What happens during inhalation? a. the diaphragm and the rib cage return to their normal resting positions. b. the diaphragm contracts and moves down while the rib cage moves up and out. c. the diaphragm expands and moves up while the rib cage moves up and out. d. the diaphragm contracts and moves down while the rib cage moves down and in.

Why do mountaineers become breathless as they reach high altitudes

Which of the following is not a technology that can be used to conserve resources? a. hydropower b. volcanic power c. natural gas d. geothermal select the best answer from the choices provided a b c d

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.