Question:
Endoskeleton of fishes is made up of cartilage and bone. Classify the following fishes as cartilaginous or bony: : Xorpedo, Sting Ray, Dog fish, Rohu, Angler Fish, Exocoetus.
Solution:
1. Xorpedo-Cartilaginous
2. Sting Ray-Cartilaginous
3. Dog Fish-Cartilaginous
4. Rohu-Bony
5. Angler fish-Bony
6. Exocoetus-Bony.
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