Which of the following is used by birds during respiration?
A) Countercurrent exchange.
B) Co-current exchange.
C) Cross-current exchange.
D) Large air capillaries.
E) An aspirating pump to create negative pressure in the lung.
Correct Answer:
Verified
Q19: Tidal ventilation is feasible in large, air-breathing
Q20: Most reptiles inhale by
A) using a positive
Q21: Mammalian lungs
A) are basically a dense capillary
Q22: The presence of surfactant in mammalian lungs
A)
Q23: Air sacs in birds
A) function as lungs.
B)
Q25: The following is a list of features
Q26: The book lung in spiders and scorpions
Q27: Respiratory pigments in animals
A) are needed because
Q28: Different respiratory pigments have different affinities for
Q29: Animals use O2 and CO2 (pH) levels
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