Question

(b) Describe how gaseous exchange occurs in a bony fish. ​

Answer 1

Answer:

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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). ... Fish exchange gases by pulling oxygen-rich water through their mouths and pumping it over their gills.

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Answer 2

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). ... Fish exchange gases by pulling oxygen-rich water through their mouths and pumping it over their gills.