Question

what are the 2 main groups of fish?

Answer 1

Agnatha - jawless fish.

Chrondrichthyes - cartilaginous fish.

Osteichthyes - bony fish.

Ray finned group.

Lobe finned group

Answer 2

Agnatha - jawless fish.
Chondrichthyes-cartilaginous fish.
Osteichthyes - bony fish. Ray finned group. Lobe finned group.