9. compare and contrast cellular respiration and fermentation.

Fermentation and cellular respiration differ in that fermentation does not require oxygen while cellular respiration does. All fermentation reactions occur in the cell's cytoplasm but during cellular respiration, only glycolysis occurs in the cytoplasm.

trachea, alveoli, lung capillaries, arteries

the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.