Meet the Basal Phyla

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Across
  1. 3. Phylum containing acoelomate worms
  2. 5. Collagenous extracellular matrix of sponges
  3. 6. The true jellyfish
  4. 10. Phylum containing sponges
  5. 12. The inner epithelial layer of a sponge's body wall
  6. 13. These clades arose very early in animal evolution
  7. 15. The free-swimming larval stage of poriferans
  8. 16. Material that makes up the extracellular matrix
  9. 17. Specialized cells cnidarians use to capture prey
Down
  1. 1. Phylum containing flat animals (not flatworms!)
  2. 2. The name for sessile cnidarians
  3. 4. Comb-like structures ctenophores use to swim
  4. 7. Phylum containing comb jellies
  5. 8. A non-living substance like jelly, makes up the extracellular matrix of ctenophorans and some cnidarians
  6. 9. The name for free-swimming cnidarians
  7. 11. Phylum containing jellyfish, sea anemones, and corals
  8. 12. Choanoderm cells that help trap and ingest food particles
  9. 14. The outer epithelial layer of a sponge's body wall