The one-way flow of air along parabronchi makes what type of gas-exchange mechanism possible, at least theoretically?
A) the same as that occurring in fish gills
B) the same as that occurring in insect tracheae
C) the same as that occurring in mammalian lungs
D) the same as that occurring in echinoderm skin gills

Question

Quizplus · Accepted Answer

The one-way flow of air along parabronchi in bird lungs facilitates a cross-current gas-exchange mechanism, which is similar to the counter-current exchange system found in fish gills, allowing for efficient oxygen uptake.

The One-Way Flow of Air Along Parabronchi Makes What Type