English Medium Class 9 - CBSE Question Bank Solutions for Science

Endoskeleton of fishes are made up of cartilage and bone; classify the following fishes as cartilagenous or bony

Torpedo, Sting ray, Dogfish, Rohu, Angler fish, Exocoetus.

Name two egg-laying mammals.

Give examples for the following

Worms causing disease elephantiasis is______.