In birds and mammals, the surface area of the lungs increases markedly because of
A) their high metabolic rate.
B) the high oxygen concentration in air.
C) a large body size.
D) their endothermic metabolism.
E) the drier air environment.
Correct Answer:
Verified
Q10: Which of the following is NOT true?
A)
Q11: Which respiratory pigment is found only in
Q12: Lungs in fish originally evolved as a
Q13: Air enters from the buccal cavity into
Q14: The most complex respiratory system among vertebrates
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
Q20: In birds, one breathing cycle is made
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