Diffusion is an effective way to exchange gases over short distances, but not over large distances.

Question

Quizplus · Accepted Answer

Diffusion is effective over short distances because it relies on the random movement of molecules. Over large distances, the concentration gradient is reduced, and diffusion becomes less efficient. In organisms, specialized structures such as respiratory systems and circulation help facilitate the exchange of gases over larger distances.

Diffusion Is an Effective Way to Exchange Gases Over Short