Respiration in the human body involves both external and internal processes, ensuring oxygen delivery to cells and carbon dioxide removal. External respiration, occurring in the lungs, involves inhaling oxygen-rich air and exhaling carbon dioxide-rich air. Internal respiration, happening at the cellular level, involves the exchange of oxygen and carbon dioxide between the blood and body tissues.
2025-06-06 20:23:14
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Linea&Nea :
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2025-06-06 20:19:33
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2026-02-20 05:44:39
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2025-10-31 08:09:53
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🥰
2025-10-08 08:44:20
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🙂
2025-11-11 08:22:44
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2025-06-06 20:20:55
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