Zoology Test

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Across
  1. 4. symmetry large and complex
  2. 5. partial body cavity (one way digestive tract)
  3. 6. let material into sponge
  4. 11. complete body cavity with organs animals can move and feed easier
  5. 15. used to sting and poison prey
  6. 17. sponges have this type of symmetry...
  7. 18. filter nutrients using mucus
  8. 20. transport sperm and form spicules
  9. 21. one side of blastula has been pushed in...
  10. 22. having both male and female reproduction
  11. 23. only cnidarian to live in freshwater...
  12. 24. egg + sperm =
  13. 26. movement:sessile & tentacle:up (coral form)
  14. 27. breaking off body part that becomes a nerve and identical cnidarian
  15. 28. movement:motile & tentacle:down (jellyfish form)
Down
  1. 1. no body cavity or organs (nutrients diffuse)
  2. 2. forms into exoskeleton
  3. 3. used for support
  4. 4. single layer around a central cavity
  5. 7. collection of sensory organs @ anterior end
  6. 8. create current
  7. 9. cell splits into two cells through...
  8. 10. after gastrulation forms 3 layers (derms)
  9. 12. 32+ cells with no cavity
  10. 13. develops into organs
  11. 14. parts radiate from central axis
  12. 16. let material out
  13. 19. cells protective cells
  14. 25. kingdom: Animalia & Phylum: Porifera
  15. 29. forms the inner lining of organs