Which of the following is the gas-exchange portion of the human lung?
A) larynx
B) pharynx
C) bronchi
D) bronchioles
E) alveoli
Correct Answer:
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Q16: Breathing in terrestrial animals is a major
Q17: In the lungs, oxygen moves from air
Q18: Birds are able to sustain long flights
Q19: All of the following are respiratory surfaces
Q20: If a respiratory surface dries out, gas
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
Q25: Alveoli:
A)have a moist surface.
B)are thick-walled.
C)are not permeable
Q26: The function of the epiglottis is to:
A)cover
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