Question

what is the difference between bony fish and cartilaginous fish

Answer 1

Bony fish is a fish which has only bones .It is dead and only its bones are remaining.
Cartilaginous fish is fully alive with its muscles and all organs present inside it.
Hope it helps u!!

Answer 2

Bony fish: which has skeleton of bones
cartilage fish : which has skeleton of cartilage

Bony fish : which is in class of osteichytheis
cartilage fish: which is in class of chondrichthyes