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What is the main difference between observations and experiments?
Pulmonary Artery
One of the arteries that extend from the pulmonary trunk to the right or left lungs.
Respiratory Membrane
The structure in the lungs where gas exchange between the air and blood takes place, consisting of alveolar and capillary walls.
Tuberculosis
An infectious disease caused by the bacterium Mycobacterium tuberculosis, primarily affecting the lungs but can spread to other organs.
Partial Pressure
The pressure that a single gas component in a mixture of gases would exert if it occupied the entire volume alone at the same temperature.
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