Question 41 Endoskeleton of fishes are made up of cartilage and bone; classify the following fishes as cartilagenous or bony: Torpedo, Sting ray, Dog fish, Rohu, Angler fish, Exocoetus.
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Solution
Torpedo—Cartilagenous Sting ray—Cartilagenous Dog fish— Cartilagenous Rohu—Bony and cartilage Angler fish— Cartilagenous Exocoetus— bony