Sponges, hydras, flatworms, and many other small, aquatic organisms exchange gases entirely by which of the following processes?

Question

Quizplus · Accepted Answer

Sponges, hydras, flatworms, and many other small, aquatic organisms rely on diffusion for gas exchange due to their simple body structures, which allow direct exchange of gases with their environment without the need for specialized respiratory systems.

Sponges, Hydras, Flatworms, and Many Other Small, Aquatic Organisms Exchange