respiratory organs of fish
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- Fish gills are organs that allow fish to breathe underwater. Most fish exchange gases like oxygen and carbon dioxide using gills that are protected under gill covers (operculum) on both sides of the pharynx (throat). Gills are tissues that are like short threads, protein structures called filaments.
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Answer:
gills
Explanation:
fish and other aquatic organisms use gills to take up the oxygen dissolved in water and difuse carbon dioxide out of the bloodstream
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