Which of the following is an organ involved in respiration?

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Multiple Choice

Which of the following is an organ involved in respiration?

Explanation:
Gas exchange happens in the lungs, which are the organs responsible for respiration. When you breathe in, air travels to the lungs and reaches tiny air sacs called alveoli. There, oxygen from the air diffuses into the blood, and carbon dioxide from the blood diffuses into the alveoli to be exhaled. This exchange supplies oxygen for cellular processes and removes waste gas, which is the core function of respiration. The muzzle isn’t a gas‑exchange organ, the liver handles metabolism and detoxification, and the kidneys filter waste from the blood—none of these perform the breathing exchange that the lungs do.

Gas exchange happens in the lungs, which are the organs responsible for respiration. When you breathe in, air travels to the lungs and reaches tiny air sacs called alveoli. There, oxygen from the air diffuses into the blood, and carbon dioxide from the blood diffuses into the alveoli to be exhaled. This exchange supplies oxygen for cellular processes and removes waste gas, which is the core function of respiration. The muzzle isn’t a gas‑exchange organ, the liver handles metabolism and detoxification, and the kidneys filter waste from the blood—none of these perform the breathing exchange that the lungs do.

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