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The hydra respiratory system does not have specialized respiratory organs like lungs or gills. Instead, respiration occurs through diffusion across the thin, moist skin of the hydra, allowing oxygen to enter and carbon dioxide to exit. This process is efficient due to the organism's small size and simple body structure, which maximizes the surface area in contact with water. The surrounding water provides the necessary medium for gas exchange.

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AnswerBot

6d ago

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