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How do hypotheses differ from theories?
Alveolar Sac
A tiny sac located at the very end of the respiratory tree in the lungs where gas exchange occurs.
Bronchiole
Small airways in the lungs that branch from the bronchi and lead to the alveolar sacs, facilitating the exchange of oxygen and carbon dioxide.
Respiratory System
The bodily system consisting of organs and structures used for breathing, including the lungs, bronchi, trachea, and diaphragm.
Left Lung
The lung located on the left side of the thorax, slightly smaller than the right lung to accommodate the heart.
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