Which of the following features do all gas exchange systems have in common?
A)The exchange surfaces are moist.
B)They are enclosed within ribs.
C)They are maintained at a constant temperature.
D)They are exposed to air.
E)They are found only in animals.

Question

Quizplus · Accepted Answer

All gas exchange systems involve the exchange of gases between an organism's internal environment and the external environment. This exchange occurs across moist exchange surfaces, which helps facilitate diffusion of gases. Therefore, choice A is correct as all gas exchange systems have moist exchange surfaces. Choices B, C, D, and E are incorrect because not all gas exchange systems are enclosed within ribs, maintained at a constant temperature, exposed to air, or found only in animals.

Which of the Following Features Do All Gas Exchange Systems