Across
- 8. digestion takes place
- 12. outside layer
- 13. third step in development
- 15. fifth step in development
- 16. 32 cells MORE than want to count
- 19. structural support
- 21. first step in development
Down
- 1. line interior of sponge use flagella
- 2. reproduction and nutrition transport
- 3. produce both sperm and egg
- 4. exit for material in sponge
- 5. second step in development
- 6. allows water into sponge
- 7. tentacles up sessile mouth up
- 8. indentation seventh step in development
- 9. type of medusa
- 10. on tentacles, sting paralyze prey
- 11. tentacles down motile mouth down
- 14. Fresh water cnidarian
- 17. fourth step in development
- 18. blast all cells out of middle sixth step
- 20. type of polyp