Compare the processes of gas exchange in humans and frogs.?

In humans, gas exchange occurs primarily in the lungs through a process called alveolar respiration, where oxygen is inhaled into the alveoli and diffuses into the bloodstream while carbon dioxide is expelled. Frogs, on the other hand, utilize a combination of pulmonary and cutaneous respiration; they exchange gases through their lungs when active and through their permeable skin when in water or resting. This dual method allows frogs to adapt to varying environments, whereas humans rely solely on their lungs for gas exchange. Overall, while both processes involve diffusion, the mechanisms and adaptations differ significantly between the two species.