In which animal respiratory surface are found in more than one organ?
Correct answer: D. frog
- A. birds
- B. human
- C. fish
- D. frog
Explanation
Frogs use more than one respiratory surface: gases are exchanged through the skin, the lining of the buccal cavity, and the lungs. Humans mainly exchange gases through the alveoli of the lungs, so “human” is the likely distractor. The question asks about respiratory surfaces in more than one organ, not simply the presence of lungs and skin in an animal.
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About Human Respiratory System
The human respiratory system conducts air to the alveoli, where oxygen and carbon dioxide exchange occurs across thin respiratory surfaces. Questions cover the nasal passage, trachea, bronchi, lungs, diaphragm and intercostal muscles, ventilation mechanics and gas transport, while distinguishing breathing and gaseous exchange from cellular respiration.
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