Some amphibians:
A) may exchange gases across their body surfaces.
B) all have fairly simple, book lungs.
C) all have gills and swim bladders, homologous to those found in fishes.
D) are characterized by having parabronchi across which most of the gas exchange occurs.
E) have a large oxygen demand that is met by using a countercurrent gas exchange mechanism.
Correct Answer:
Verified
Q3: Parabronchi are characteristic of:
A) insects.
B) spiders.
C) mollusks.
D)
Q10: _ have the most efficient respiratory system
Q11: To facilitate respiration, birds have extensions of
Q12: If mitochondria were deprived of oxygen:
A) cellular
Q13: Which of the following sequences correctly describes
Q14: Clams and other bivalves typically have:
A) dermal
Q15: Figure 46-1 Q16: Fish can control buoyancy by: Q17: The exchange of gases between an organism Q18: Figure 46-1 
A) holding air
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