The respiratory surfaces of mammalian lungs are called ____.
A) alveoli
B) bronchi
C) tracheae
D) bronchioles
E) air sacs
Correct Answer:
Verified
Q19: The _ represent an internal respiratory system.
A)
Q20: Air is the least optimal respiratory medium
Q21: Air becomes deoxygenated during the _ of
Q22: The _ is/are responsible for closing off
Q23: A _ uses air sacs to ventilate
Q25: The primary muscle(s) involved in human breathing
Q26: The _ stimulate(s) forceful inhalation and exhalation.
A)
Q27: Air movement to the mammalian respiratory surfaces
Q28: The concentration of _ has the greatest
Q29: Among air breathing animals, birds have the
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