Answer:
I do not know the answer to "please explain to me bony fish and cartilaginous fish?"I have no idea what ur asking, are u saying to define their features? But for the gaseous exchange with frogs:Frog respiration
Explanation:
The frog has three respiratory surfaces on its body that it uses to exchange gas with the surroundings. If u need me to explain more about frog respiration please dont hesitate to ask
Hope this helps!-jade