Earth History and Global Change

GEOL-1122 Fall 2009

Answers for Practice Test #1

1. d 10. c 19. b

2. a 11. b 20. a

3. a 12. b 21. a

4. d 13. c 22. a

5. c 14. d 23. a

6. b 15. b 24. a

7. d 16. b 25. a

8. a 17. d

9. d 18. b

26. Because they were all minimum ages that were based on partial records of earth history such as erosion or deposition.

27. Superposition

28. Biostratigraphy

29-30. a) Limited age range

b) Easily recognizable

c) Widespread geographically

d) Abundance of individuals

31. Nonconformity

32. alpha

33. 10 million years

34. 15 million years

35. Carbon 14

36. Cenozoic

37-38. Animals, Plants, Monera, Protista, Fungi

39. artificial

40. Appendix or wisdom teeth; pelvis

41-42. He proposed that limited variability was best for survival. Instead the theory really proposes the variability is essential for survival of a species.

43. Inheritance of Acquired Characteristics

44. extinction

45-46. They are different structures in different organisms that start to resemble one another as they are used for the same purpose. For example, the wings on bats and insects.

47-48. Paleobigeography; Life forms evolved differently on separated continents.

49-50. Gradualism; Punctuated Equilibrium

Extra Credit: Cladogram