The primary advantage of gills versus the body surface for gas exchange in aquatic animals is that ________.
A)gills are located near the mouth
B)gills have a much greater diffusion surface area
C)gills decrease resistance to movement
D)all gills contain a countercurrent exchange system

Question

Quizplus · Accepted Answer

Gills provide a much greater surface area for gas exchange compared to the body surface, allowing for more efficient oxygen uptake from water.

The Primary Advantage of Gills Versus the Body Surface for Gas