COMPARATIVE ANATOMY CHAPTER 3

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Across
  1. 2. "plate" and "skin"
  2. 3. inlcude the bony fishes; the most diverse of any vertebrate.
  3. 5. Series of separate bones or cartilage blocks. firmly joined as a backbone that defines the major body axis.
  4. 7. vertebtrates with jaws
  5. 10. The anterior clustering of specialized sensory organs.
  6. 11. __________ is another ostracorderm group.
  7. 14. __________ or Caudata, contains the salamanders
  8. 15. reptiles diagnosed by skulls without temporal fenestrae.
  9. 16. embryos of amniotes possess a delicate, transparent, saclike membrane.
  10. 18. living reptiles have __________
  11. 19. "small" and "lizard" (were not lizards, but lepospondyls)
  12. 20. aquatic salamanders belonging to the family Salamandridae
  13. 21. the __________ help hold and position the fish within currents.
  14. 23. birds with talons, specialized feet used to stun or grasp prey.
  15. 25. some fossil agnathans.
  16. 28. pull themselves into their mother pouch; no male __________ has a pouch.
  17. 30. include mostly carnivorous species.
  18. 31. The earliest vertebrates.
  19. 33. hulking and pig-sized.
  20. 34. the advance bony fishes (the sleek shape)
  21. 35. "cartilage" and "fish" (include the sharks)
  22. 37. inlcludes familiar forms such as crocodiles, dinosaur and birds.
  23. 38. solid cylindrical body that often encloses the notochord.
  24. 39. first name of the Physiologist argued that vertebrate kidney worked well to rid the body of any osmotic influx of excess water.
Down
  1. 1. Another evolving key vertebrate innovation.
  2. 4. "shell" and "skin".
  3. 6. usually present and well developed in males, produces territorial and courtship vocalization.
  4. 8. unique in the way the digits articulate with the ankle bones.
  5. 9. all living agnathans __________ bone and possess 4 single nostril.
  6. 12. frogs and toads make up the __________
  7. 13. those without an amnion.
  8. 17. were straight, rather than V- shaped.
  9. 22. the largest of the eutherian groups.
  10. 24. fishes without jaws.
  11. 26. arboreal or had ancestors who were, and they posses grasping fingers and toes tipped by nails.
  12. 27. drawn under the body to become the major weight-bearing and locomotor appendages.
  13. 29. a monophyletic lineage producing many various forms.
  14. 32. early vertebrate fossils were recovered from what appeared to be freshwater or delta deposits.
  15. 36. amphibians, repltiles, birds, and mammals (literally means four footed).