Across
- 5. hollow sac like animals
- 7. Nematoda
- 8. milk nourishing animals
- 10. excretory organ of annelida
- 14. lizards and snakes
- 15. animals without backbone
- 16. spiders , ticks .Scorpion
Down
- 1. spiny skinned animals
- 2. animals with jointed legs.
- 3. body covered with feathers
- 4. flatworms
- 6. pore bearing animals
- 9. soft bodied shelled animals
- 11. live on land and water
- 12. animals with backbones
- 13. animals