2. You’re really old! Simply the Best Thorny Theories Look Alikes Let’s Work Together 10 20 30 40 50

3. Question 1 - 10 Remains or imprints of once-living organisms

4. Answer 1 – 10 What are fossils?

5. Question 1 - 20 Becomes a look alike for the organism that once existed

6. Answer 1 – 20 What is a cast?

7. Question 1 - 30 Uses rock layers to compare ages of different fossils

8. Answer 1 – 30 What is relative dating?

9. Question 1 - 40 Uses radioactive elements to tell how old something is

10. Answer 1 – 40 What is absolute dating?

11. Question 1 - 50 Formed when an organism buried in sediment decays

12. Answer 1 – 50 What is a mold?

13. Question 2 - 10 The probability that an organism will be able to reproduce in its environment

14. Answer 2 – 10 What is fitness?

15. Question 2 - 20 A change in behavior or body which help an organism survive in its environment

16. Answer 2 – 20 What is an adaptation?

17. Question 2 - 30 Changes in genes which are passed down to future generations

18. Answer 2 – 30 What are mutations?

19. Question 2 - 40 Traits which are not genetic, but are developed during an organism’s lifetime

20. Answer 2 – 40 What are acquired traits?

21. Question 2 - 50 Difference from the normal body or behavior of a species

22. Answer 2 – 50 What is variation?

23. Question 3 - 10 The theory that the genetic code of a species can change from generation to generation over time

24. Answer 3 – 10 What is evolution?

25. Question 3 - 20 The theory that speciation occurs in very small steps over a long period of time

26. Answer 3 – 20 What is gradualism?

27. Question 3 - 30 The theory that speciation occurs in occasional periods of extreme change, between long periods of no change

28. Answer 3 – 30 What is punctuated equilibrium?

29. Question 3 - 40 The theory that organisms which are better adapted to their environments are more likely to survive, reproduce, and pass their traits on to future generations

30. Answer 3 – 40 What is natural selection?

31. Question 3 - 50 The theory that a meteor covered the earth with dust that blocked out the sun, resulting in the death of all dinosaurs, would explain this.

32. Answer 3 – 50 What is mass extinction?

33. Question 4 - 10 They look alike except for the color of their wings.

34. Answer 4 – 10 What are peppered moths?

35. Question 4 - 20 They look alike except for the body parts that help them get food.

36. Answer 4 – 20 What are Darwin’s finches?

37. Question 4 - 30 The oldest fossils of this species look more like land mammals than they look like their modern day equivalent.

38. Answer 4 – 30 What are whales?

39. Question 4 - 40 Sometimes fossils show that this older version of any organism looks very different from its current version.

40. Answer 4 – 40 What is an ancestor?

41. Question 4 - 50 Peppered moths are more likely to survive if they look like this.

42. Answer 4 – 50 The bark of the tree they sleep on.

43. Question 5 - 10 A cast fossil can only form if this exists first.

44. Answer 5 – 10 Mold fossil

45. Question 5 - 20 Hummingbird beaks getting longer as the flowers they pollinate become deeper is an example of this type of change.

46. Answer 5 – 20 Coevolution

47. Question 5 - 30 Flippers in a dolphin and wings in a bird are an example of these structures.

48. Answer 5 – 30 What are analogous structures?

49. Question 5 - 40 A single species may separate into 2 types of organisms which can no longer be considered variations within the same species

50. Answer 5 – 40 What is speciation?

51. Question 5 - 50 One species becomes geographically separated into 2 groups, and eventually those 2 groups become separate species.

52. Answer 5 – 50 What is geographic speciation?