Marine Invertebrates

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Across
  1. 5. / spiny skinned
  2. 6. / shell are made of this
  3. 8. / no shell
  4. 9. / similar parts repeated around a central axis
  5. 11. / have a porous body
  6. 13. / body form of jellyfish
  7. 16. / performs crucial ecological role of nutrient recycling
  8. 18. / some of these can have a fatal sting
  9. 20. / produce light
  10. 25. / five arms or fans radiating from a central body
  11. 27. /one shell
  12. 28. / creatures in this phylum have a 3-part body plan
  13. 29. / one of the smartest marine creatures, has an ink sack
  14. 30. / nonmobile
Down
  1. 1. / body is a mirror image on both sides
  2. 2. / Barnacles, copepods, isopods and kill are all...
  3. 3. / keystone species that feeds on fast growing corals
  4. 4. / extra paddle-like legs under the abdomen
  5. 7. / two shells
  6. 10. /Shells are hinged and held together by an
  7. 11. / sexual reproduction
  8. 12. / Live on the sea floor
  9. 14. / clear the water as they filter water all day
  10. 15. / having 10 legs
  11. 17. / the process where crabs come out of their shell and grow a new one.
  12. 19. / asexual reproduction
  13. 21. / coral polyps grow in these
  14. 22. / jellyfish, corals and anemones are all types of...
  15. 23. / scavenging species
  16. 24. / organelles on the tentacles that contain venom
  17. 26. / Reef building corals are called