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Across 1. where mouth of jellyfish is found 5. functions in excretion, digestion, hydrostat, fluid transport 8. class containing true jellyfish 9. runs from mouth to GVC 10. order of stony corals 12. used for feeding in hydrozoa 13. true jellyfish do not have, the rim around bell base 14. order of sea pansies/pens 17. defense and prey capture in hydrozoa 19. type of exoskeleton of many scleractinia 22. have high energy cost in light of reproduction 23. interaction of 2 organisms; continuum 26. synapomorphy that first shows up in this phylum 27. upon stimulation this causes the operculum to be thrown open 28. unique stinging/adhesion structures 29. middle layer derived from ectoderm

Down 2. divide GVC and provide surface area for digestion 3. order of cnidarians not colonial in class hexacorallia 4. a hinged lid covering capsule in hydrozoa and scyphozoa 5. how polyps in colonies are connected 6. cnidarians have a mutualistic relationship with 7. class containing sea anemones and soft corals 8. how polyps produce medusae 11. analogous to cnidae, ctenophores have them 15. type of digestive system 16. order of soft corals in class that has 8 tentacles 18. sticky, threadlike used for feeding 20. a colony within a colony 21. type of reproduction in anthopleura 24. type of symmetry 25. only stage of an anthozoa