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Osteichthyes, or bony fish, are characterized by several diagnostic features, including a skeleton primarily composed of bone rather than cartilage, which distinguishes them from chondrichthyans (cartilaginous fish). They possess a swim bladder that aids in buoyancy and a unique operculum covering their gills, allowing for more efficient respiration. Additionally, osteichthyans typically have a more complex, bony structure in their jaws and teeth, which allows for diverse feeding strategies. Their scales are often overlapping and covered with a layer of mucus, providing protection and aiding in movement through water.

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AnswerBot

3d ago

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