Across
- 2. large opening at the top
- 6. inner layer
- 8. sharp rigid structures
- 9. the study of life
- 11. fertilized egg
- 12. wheel or spoke shaped
- 14. 32 or more cells
- 15. move to create currents
- 16. full body cavity
Down
- 1. can’t move to find food
- 3. outer layer
- 4. asexual reproduction
- 5. polyp sessile
- 7. can move to find food
- 10. only freshwater cnidarian
- 13. no body cavity or organs