Question

how do cartiliginous fishes differ from bony fishes?

Answer 1

bony fish such as rohu are seen on floating in aquatic environment like ballon thy are bilaterally symmetary

Answer 2

The principal difference between bony fish and cartilaginous fish is in the skeleton makeup. As previously mentioned, bony fish have a bone skeleton whereas cartilaginous fishhave a skeleton made of cartilage. There are, however, several otherdifferences between these two classes of fish.