The term ‘shell fish’ includes
Prawns and Molluscs
The correct option is A.
Explanation of the correct option:
Explanation of incorrect options
Option B: Fishes having bony skeletons are bony fishes while those whose skeletons are made up of cartilage are cartilaginous fish. They do not have an exoskeleton like shellfish.
Option C: Cuttle fish and Star fish are not true fish its only sounds like fish. Cuttlefish is a mollusk while Starfish is an Echinoderm.
Option D: Jellyfish is a Coelenterate. They are free-swimming marine animals with umbrella-shaped head and trailing tentacles.
Final answer: The term ‘shell fish’ includes Prawns and Molluscs.