CHAPTER 1-INTRODUCTION

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Across
  1. 2. Farthest to the body
  2. 5. region or chest supports the forelimbs
  3. 7. plane separates it into anterior and posterior portions
  4. 9. Analysis of vertebrate design proceeds in three general steps, each enhancing the other: The Function, The Biological Role and The ?
  5. 10. a kind of biological blueprint
  6. 14. means the action or property of a part as it works in an organism
  7. 16. hypothesis about the lineages and their evolutionary relationships
  8. 17. A kind of homology- similarity between successively repeated parts in the same organism
  9. 20. Belly or front
  10. 21. Middle of the body
  11. 24. is the term that has been coined to recognize the importance of ecological analysis in the examination of a morphological system.
  12. 25. is the basis for recognizing a clad
  13. 26. is a synonym for a paraphyletic group
  14. 27. The way in which an animal’s body meets the surrounding environment
  15. 29. Refers to the tail
  16. 30. Three issues of evolution: fact, course and ?
  17. 31. Refers to the head end
  18. 32. Last name of the man who determines that species were fixed and unchangeable
  19. 33. His answer centered on archetypes
  20. 34. Last name of the man who proposed mechanism of inheritance of acquired characteristics
  21. 36. The course of evolution
  22. 38. Plane that splits into left and right portions.
  23. 39. 2 or more features that share a common ancestry
Down
  1. 1. A kind of symmetry, only the mid-sagittal plane divides the body into two mirrored images, left and right
  2. 3. is an inadvertent by-product of human saliva, without any adaptive role in the environment.
  3. 4. refers to how the part is used in the environment during the course of the organism’s life history
  4. 6. a method of placing fossils in a relative sequence to each other
  5. 8. last name of the Curator of the Museum of Comparative Zoology at Harvard University
  6. 11. Last name of “Darwin’s Bulldog”
  7. 12. Last name of a respected specialist in ornithology. He emphasized that the birds were endemic to the Galápago
  8. 13. Nearest to the body
  9. 15. Brought attention to the function that parts performed
  10. 18. the proposed relationships of the animal (and its parts) to other species
  11. 19. Named group of an organism
  12. 22. Structure or behavior possesses the necessary form and function before
  13. 23. is a lineage—all organisms in a lineage
  14. 28. is the study of how decay and tissue disintegration affect fossilization
  15. 31. features with similar functions
  16. 35. A body or structure built of repeating or duplicated sections is segmented
  17. 37. The earliest eon