In birds, one breathing cycle is made up of
A) one inspiration and one expiration.
B) one inspiration and two expirations.
C) two inspirations and two expirations.
D) two inspirations and one expirations.
E) two inspirations and three expirations.
Correct Answer:
Verified
Q15: In birds and mammals, the surface area
Q16: Air capillaries are found in
A) mammals.
B) reptiles.
C)
Q17: In contrast to mammals, the lungs of
Q18: Respiration in birds differs from mammals in
Q19: Thoracic wall and lungs remain in close
Q21: During inspiration in mammals the
A) external intercostal
Q22: During passive expiration
A) diaphragm relaxes.
B) external intercostal
Q23: As inspiration begins, the intra-alveolar pressure is
A)
Q24: The intrapleural pressure
A) falls before inspiration.
B) falls
Q25: Hemoglobin may increase in animals as a
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