Across
- 3. in the tentacles of a jellyfish
- 4. phylum of flatworms
- 6. the typical form of a jellyfish
- 8. digests food in cnidarians
- 10. phylum of roundworms
- 12. the antterior end of a tapeworm
- 14. the reproductive system in a taoeworm
- 18. not derived from the mesoderm
Down
- 1. type of free-living flatworm
- 2. an organism that has both reproductive systems
- 5. middle layer of an embryo
- 7. invertebrate lacking a coelom
- 9. The presence of this cell defines the phylum Cnidaria
- 11. integument of a flatworm
- 13. cells that line the interior of asconoid
- 15. aperture expelling water
- 16. behind the mouth in invertabrates
- 17. extra piece of tissue