Identify the aquatic animal with scaly skin which breathe with gills:

1. Rohu
2. Tortoise
3. Sparrow
4. Rat

Identify the animal which is not an Arthropod:

1. Prawn
2. Butterfly
3. Earthworm
4. Spider

Which of the following organisms is not an invertebrate ?

1. Round worm
2. Butterfly
3. Sea anemone
4. Lizard

Liver fluke belongs to :

1. Nematoda
2. Platyhelminthes
3. Annelida
4. Cnidaria