Chapter 6: Sponges

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Across
  1. 2. -Cells with flagella in sponges
  2. 4. -Sponge support cells that form fibers (10 letters)
  3. 5. -Class of sponges with skeletons primarily composed of siliceous spicules or lacking a skeleton
  4. 7. -Free-swimming larval stage of a sponge (11 letters)
  5. 10. -Flexible cells in sponges
  6. 11. -Cells producing sponge spines
  7. 15. -A resistant, asexual reproductive structure produced by some sponges (7 letters)
  8. 16. -Cells producing sponge fibers
  9. 17. -Pores through which water enters a sponge (6 letters)
  10. 18. -Fibrous protein forming the skeletal framework in some sponges (7 letters) - Spongin
Down
  1. 1. -Class of sponges with skeletons typically with siliceous spicules or spongin fibers (13 letters
  2. 3. - type of sponge body type
  3. 6. -Class of sponges with skeletons primarily composed of calcium carbonate (8 letters)
  4. 8. -Class of sponges with skeletons made of silica spicules (14 letters)
  5. 9. -Outer layer cells of a sponge
  6. 10. - type of sponge body type
  7. 12. -Large openings through which water exits a sponge (6 letters)
  8. 13. -Needle-like structures providing structural support in sponges (8 letters)
  9. 14. - type of sponge body type