Question

Differentiate between dogfish and catfish.

Answer 1

dog fish 
 found in sea water 
 it has small scale
 dog fish does not have barbels like whiskers around the mouth 

cat fish 
 found in fresh water
 it lack the scale
 they have barbels like whiskers around the mouth

Answer 2

Dog firsh

-cartilaginous

-have jaws

-body divided into 3 parts head,trunk,trail

-fresh water

Cat fish

-bony fish

-jawless

-endoskeleton is made up of bones

-sea water