Across
- 2. Another name for King Crab
- 5. Another word for Dog Fish
- 8. Water vascular system is seen in
- 9. Another word for gill cover
- 10. In this class development is direct and they are oviparous
- 11. Example of oviparous mammal
- 13. Their larvae after metamorphosis return to ocean
- 16. Scientific name of Penguin
- 18. Example of flightless bird
- 19. Fertilization in Balanoglossus
Down
- 1. Shown by Pleurobrachia
- 3. Body cavity is pseudocoelomate
- 4. Example of Urochordata
- 6. Air bladder is present in
- 7. Organ of excretion in Hirudinaria
- 12. 6-15 pairs of gill slits seen in
- 14. Polyp life form of Cnidaria
- 15. Portuguese Man of War
- 17. Digestion in Porifera