Question

Why is a countercurrent system a more efficient system for gas exchange?

Answer 1

Answer:

A countercurrent system a more efficient system for gas exchange. Because water is viscous, this would require a lot of energy, so the counter-current system is a more efficient way of increasing the amount of oxygen diffusing into the blood. The unidirectional flow of water is another advantage.

I hope you helped^_^

Follow me for more answers