Thursday, December 27, 2007

Question Set 2 for 3rd Quarterly Exam in Science 7

Define all the following terms.

1. Evolution

2. Fossils

3. Relative dating

4. Radioactive dating

5. Isotopes

6. Law of Superposition

7. Principle of Horizontal Originality

8. Natural Selection

9. Artificial Selection

10. Natural variation

11. Struggle for existence

12. Fitness

13. Adaptation

14. Descent with Modification

15. Homologous structures

16. Vestigial organs

17. Gene

18. Gene pool

19. Mutation

20. Gene shuffling

21. Polyploidy

22. Single-gene traits

23. Polygenic traits

24. Allele

25. Directional selection

26. Stabilizing selection

27. Disruptive selection

28. Allele frequency

29. Genetic drift

30. Speciation

31. Reproductive Isolation

32. Behavioral isolation

33. Temporal isolation

34. Geographical isolation

35. Mass extinction

36. Convergent evolution

37. Coevolution

38. Adaptive radiation

39. Punctuated equilibrium

40. Hox genes

Submit your answers to this question set on or before Jan. 2, 2008 (Wednesday) to sanmig_glenn@yahoo.com . Answers to this set will be posted on Jan. 5, 2007 (Saturday).

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