The skeleton of chondrichthyes fishes is made up of ___________
Scales
Bone
Cartilage
Skin
Which of the following fishes has a skeleton made of cartilage only?
Endoskeleton of fishes are made up of cartilage and bone; classify the following fishes as cartilaginous or bony: Torpedo, Sting ray, Dog fish, Rohu, Angler fish, Exocoetus. [3MARKS]