General Zoology Exam 2 Crossword

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Across
  1. 1. A synapomorphy of Superphylum Ecdysozoa; a shedding process
  2. 6. Type of fauna from the Precambrian found in Australia
  3. 8. Ectoderm; nine different types but only five common types
  4. 9. Used to capture prey in Physalia physalis
  5. 10. Relative of modern fan coral
  6. 14. Fauna from the Cambrian Explosion was found at this site in Canada
  7. 16. “Stem” cells in Phylum “Porifera”
  8. 18. Coelom formation in deuterostomes; looks like Disney ears
  9. 19. The trigger found on a stinging cell in Phylum Cnidaria
  10. 20. Reproduction form found in sponges that occurs during freezing
  11. 22. Pore that opens into the spongocoel in a syconoid-grade sponge
  12. 25. Cambrian explosion as explained by Gould and Eldridge
  13. 27. Organizes Phylum “Porifera”; gives insight on environment, food, and flow of water
  14. 28. Reef-forming; seen often in hexacorals which form large calcium carbonate skeletons
  15. 30. The 9th characteristic that is unique to animals is a _______ digestive system.
  16. 34. The function of this is to bring sand and debris up and out, so it does not stay in the gastrovascular cavity; seen in Class Anthozoa
  17. 35. Medium energy, medium toxicity, and medium solubility; gets rid of urea
  18. 36. The organelle of the stinging cell in Phylum Cnidaria
  19. 37. In between the gastrodermis and epidermis in a cnidarian
  20. 38. Found in the Archaean period during the Precambrian Eon; formed of cyanobacteria layers
Down
  1. 2. Cavity that may be found in two grades of P. Porifera; sometimes lined with choanocytes
  2. 3. The lid of the stinging cell in Phylum Cnidaria
  3. 4. Blood passes from the arteries into these and out into the veins; only exchange site
  4. 5. The object a protostome's nerve cord surrounds which does not allow for them to grow big
  5. 7. Formed by pinacocytes (porocytes and myocytes)
  6. 11. Type of archaeocyte that forms spicules in Phylum “Porifera”
  7. 12. A primitive term for Pseudocoelomate; used in the “Classical View of Coelom Evolution”
  8. 13. Written by Daniel Bernoulli; discusses proposed laws of fluid mechanics
  9. 15. Statocysts help cnidarians to determine up and down thanks to this force
  10. 17. Desmosomes are made of keratin and ________.
  11. 21. Helps to increase absorption in Phylum Platyhelminthes
  12. 23. Fate in protostomes where the cell forms its own part and not a mini version of the product
  13. 24. New cavity formed during gastrulation; means primitive gut / intestine
  14. 26. A basic feeding type that eats rotting material
  15. 29. The oral view in directional terms may be decided by the presence of a _____ on that side.
  16. 31. A feeding structure found in the Lophotrochozoa division
  17. 32. Meaning two houses; example: males and females
  18. 33. System that includes using septae for increased absorption (2 words)