Alveoli:
A) have a moist surface.
B) are thick-walled.
C) are not permeable to dissolved O2.
D) are found in gills.
E) are directly attached to the tracheae.
Correct Answer:
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Q20: If a respiratory surface dries out, gas
Q21: Which of the following is the gas-exchange
Q22: The vocal cords are located in the:
A)larynx.
B)pharynx.
C)epiglottis.
D)trachea.
E)bronchi.
Q23: How much air enters the lungs in
Q24: After passing through the nasal cavities, incoming
Q26: The function of the epiglottis is to:
A)cover
Q27: The surface area-to-volume ratio (S/V)can be calculated
Q28: A thin slice of a lung looks
Q29: The cells that line the human respiratory
Q30: Which of these structures is analogous in
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