What are the distinguishing characteristics of jawed fish?
These type of fishes have movable jaws that are usually armed with well developed teeth. The mouth is often located underneath the head. Cartilaginous fish have rough, sandpaper-like skin because of the presence of tiny scales, which have the same composition as teeth.May 8, 2017
These type of fishes have movable jaws that are usually armed with well developed teeth. The mouth is often located underneath the head. Cartilaginous fish have rough, sandpaper-like skin because of the presence of tiny scales, which have the same composition as teeth.May 8, 2017