In chordates the notochord is

Which of the following animal is not an insect ?

Example of living fossil in Arthropoda is :

From which stage of silk worm silk is obtained :

Following is an oviparous mammal

Which of the following feature of bony fish is missing in cartilaginous fishes

What distinguishes an insect from a crustacean ?

Which of the following characteristic is shared by all Arthropods ?

Mark the correct match of the animal and its common name

Which of the following is a limbless amphibian