Cnidaria

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Across
  1. 2. the sessile form of cnidarian
  2. 4. a larval jellyfish, after it has separated from the scyphistoma.
  3. 6. the lining membrane of the alimentary tract of an invertebrate
  4. 9. a gelatinous substance between the endoderm and ectoderm of sponges or cnidarians
  5. 10. cavity primary organ of digestion and circulation
  6. 11. Stinging apparatus
  7. 12. a specialized cell in the tentacles of a jellyfish or other coelenterate, containing a barbed or venomous coiled thread that can be projected in self-defense or to capture prey.
Down
  1. 1. specialized cells that define the phylum Cnidaria.
  2. 3. the fixed polyp-like stage in the life cycle of a jellyfish, which reproduces asexually by budding
  3. 5. skeleton the most prevalent skeletal system used by animals for movement and support
  4. 7. typical form of the jellyfish
  5. 8. free-swimming or crawling larval type