Chapter 3 & 4

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Across
  1. 3. small, rounded opening
  2. 4. acting forces are unbalanced
  3. 6. mass divided by volume
  4. 8. force applied to an object times the distance the object moves in tge direction of the force
  5. 11. property of matter
  6. 13. network to intertwining vessels
  7. 14. series of separate bones or cartilage
  8. 17. fishes without jaws
  9. 18. derived diapsids
  10. 20. changes in shape and size
  11. 22. sharks and their allies
  12. 27. farsightedness
  13. 29. bony fish that rest on one side against the substrate
  14. 30. rate at which work gets done
  15. 31. measurement of variables with a magnitude and a direction
  16. 32. dinasaur with downy feathers
  17. 34. all force acting on an object balance
  18. 35. plate and skin
  19. 37. measure of force
  20. 38. anterior clustering of specialized sensory organs
  21. 39. vertebrates with jaws
  22. 40. resembled modern chimaeras
Down
  1. 1. constructed of highly specialized capillary beds
  2. 2. rate of change in an object position
  3. 5. vertebrates producing embryos wrapped in such an amnion
  4. 7. shell and skin
  5. 9. encloses the notochord
  6. 10. supports the sensory organ in the head
  7. 12. rate of change in its velocity
  8. 15. birds with talons
  9. 16. study of size and its consequences
  10. 19. called ray-finned
  11. 21. devices that transfer forces
  12. 23. describes growth in which the proportions remain constant
  13. 24. bony fishes
  14. 25. pivor point
  15. 26. external nostrils opening internally to the mouth through holes
  16. 28. force divided by tge area over which it acts
  17. 33. effects of one body acting on another through their respective mass and acceleration
  18. 36. transportation wherein a tissue change from one type to another