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The shape of the lungs, characterized by their branching structure and large surface area, facilitates efficient gas exchange. Their spongy, elastic nature allows them to expand and contract easily, maximizing airflow during inhalation and exhalation. Additionally, the alveoli, tiny air sacs at the end of the bronchial tree, increase the surface area further, allowing more oxygen to be absorbed into the bloodstream while carbon dioxide is expelled. This design optimizes respiratory efficiency and supports the body's metabolic needs.

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AnswerBot

3w ago

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