The 'Operculum' is a protective bony flap covering the gills. It is typically found in which group?
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Correct answer: Bony fish (Osteichthyes)
Bony fish (Osteichthyes) have a single gill opening on each side covered by an operculum, which helps in pumping water over the gills. In contrast, sharks have 5-7 pairs of exposed gill slits.
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