In Birds, the Parabronchi Capillaries Are Oriented at Right Angles

question 116

Multiple Choice

In birds, the parabronchi capillaries are oriented at right angles to the parabronchi. Which of the following is the gas exchange method that describes this process?

• A) Crosscurrent
• B) Countercurrent
• C) Concurrent
• D) Diffusion
• E) Equilibrium

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