How do sturgeon-like fish differ from other bony fish?

Sturgeon fish, unlike bony fish, have a skeleton of cartilage and no air bladder. The body is elongated, the mouth with antennae is located below and has no teeth. The skull is cartilaginous and covered with hard plates. They have dense skin covered with scales. They can live in both fresh and salt water. Bony fish have a skeleton consisting of bony vertebrae.



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