AP BIOLOGY

Detailed explanation-1: -The lungs and respiratory system allow us to breathe. They bring oxygen into our bodies (called inspiration, or inhalation) and send carbon dioxide out (called expiration, or exhalation). This exchange of oxygen and carbon dioxide is called respiration.

Detailed explanation-2: -The lungs are responsible for the excretion of gaseous wastes, primarily carbon dioxide from cellular respiration in cells throughout the body. Exhaled air also contains water vapor and trace levels of some other waste gases.

Detailed explanation-3: -Lungs are the respiratory organ, they help in removal of carbon dioxide from our body through the air that we respire.

Detailed explanation-4: -Lungs. Lungs facilitate gaseous exchange. They help in inhaling oxygen and eliminating carbon dioxide and water vapour from the body.