Question

what is the respiratory organ in aquatic animals

Answer 1

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Fish and other aquatic organisms use gills to take up oxygen dissolved in the water and diffuse carbon dioxide out of the bloodstream. Some insects utilize a tracheal system that transports oxygen from the external environment through openings called spiracles.

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Answer 2

hey mate,
here is your answer
aquatic animals use gills for the respiration but mammals like dolphin and whale use there lungs for the respiration



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