1.Compare asthma, emphysema, and chronic bronchitis. 2. Imagine you are an oxygen molecule.
- what happens to you once you reach the alveoli?
3. Cilia are small hairs that line your nose, trachea, bronchi and bronchioles. Go to page 79(16 in PDF) in the textbook and find out what cilia do for the respiratory system.

Please answer by the photos.

Punctuated equilibrium verses gradualism have long been contested as ways in which species evolve. choose the best evidence for gradualism.

Choose the molecule that is described by each phrase. energy used during long activities:

Which statement best describes lactic acid fermentation? a. lactic acid fermentation is the first step of cellular respiration. o b. lactic acid fermentation is the final step of cellular respiration. re to berate c. in the absence of oxygen, cells release atp by breaking down lactose into glucose. e der lade res o d. in the absence of oxygen, cells release atp by breaking down glucose into lactate. ar