Question

difference between bony fish and cartilage fish (in 2points). with one example

Answer 1

bony fish :
1)there skeleton is made of hard bone
2)operculum present
3)ex:anabas
cartilage fish :
1)there skeleton is made of soft bone called cartilage
2)operculum is absent
3)ex:scoliodon

Answer 2

Bony Fish

This category of fish is also referred to as Teleostomi. It is also considered the largest class in Phylum Chordata. These fish are widely recognized because of the following characteristics:

1.Their endoskeleton is entirely made of bone

2.They have anterior tip mouth opening

Some of the fish in this category include flying fish, globe fish, sea horses and eels.

Cartilaginous Fish

This category of fish is also referred to as Elasmobranchi. In this category you will primarily find marine fishes. Therefore, you should not find any fresh water fish in this group. They generally possess the following characteristics:

1.Their endoskeleton is primarily made of cartilage

2.Their exoskeleton is made of placoid (very small denticles coated with lots of sharp enamel)

Some of the common fish in this group include dog fish, skates, electric ray torpedo, and sharks.