Porifera Review

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Across
  1. 1. how waste is removed
  2. 4. class of sponges made of calcium carbonate
  3. 6. how sponge cells "engulf" their food
  4. 7. body plan that has canals and chambers
  5. 8. means that an organism produces sperm and egg
  6. 10. the most basic sponge body plan
  7. 11. jelly-like middle layer of a sponge
  8. 13. means that sponges do not move
  9. 15. large opening where water exits sponges
  10. 18. fibrous structure that provides support
  11. 19. large central chamber in some sponges
Down
  1. 2. tiny spikes that line some sponges
  2. 3. these cells can move throughout the mesohyl
  3. 5. cells that act as "skin" for a sponge
  4. 9. holes in a sponge created by porocytes
  5. 12. resistant capsules that aid in asexual repro.
  6. 14. whip-like organelle that helps water flow
  7. 16. cells that have a flagellum and collar
  8. 17. specialized cells that create ostia
  9. 18. body plan where sponge walls are folded