In aquatic invertebrates
A) ventilation is always achieved by the beating of the swimming appendages.
B) gas exchange occurs via papulae in most crustaceans.
C) gills are rarely located in chambers.
D) ventilation is essential for gas exchange in papulae.
E) gills are outgrowths of the body surface.

Question

Quizplus · Accepted Answer

Gills, which are outgrowths of the body surface, serve as the primary site for gas exchange in many aquatic invertebrates. This structure allows for a large surface area in contact with the surrounding water, facilitating the diffusion of oxygen into the body and carbon dioxide out.

In Aquatic Invertebrates