Evolution and Geological Time Crossword

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Across
  1. 5. of a vestigial structure in a whale.
  2. 8. longest Era in geological time.
  3. 10. The organisms that survive according to Darwin’s idea of natural selection.
  4. 11. structures that have different structures with similar functions (not closely related)
  5. 14. Two of the main organisms that Darwin observed on the Galapagos.
  6. 15. Darwin noticed that organisms were very similar with small differences to better help them fit their __________________.
  7. 17. fossils are found in ____________ rocks.
  8. 18. The group of islands that Darwin gathered much of his data from.
  9. 22. The differences in the tortoises of the Galapagos Islands.
  10. 23. can be broken into ___________.
  11. 25. Adaptation of a giraffe.
  12. 27. Adaptation of a porcupine.
  13. 28. Time can be broken into four _________.
  14. 30. Any ancient remain of life.
  15. 32. An example of homologous structures are a ______________ arm and ______ wing.
  16. 33. Scientist who traveled around the world collecting specimens to help support his idea of evolution.
  17. 35. of the Mesozoic Era.
  18. 38. The difference in the finches that Darwin observed on the Galapagos Islands.
  19. 39. Structures that multiple organisms have that are built the same but have different functions to better allow that organisms a chance of survival.
Down
  1. 1. of analogous structures would be a ____________ wing and a ______________ wing.
  2. 2. current Era we are in right now.
  3. 3. The number one instinct of all animals that are suited well enough to survive.
  4. 4. Any inherited trait that increases an organism’s chance of survival.
  5. 6. Structures that organisms possess but no longer have a purpose.
  6. 7. Evolution cannot be considered a fact because we cannot be 100% certain it occurred. However, we do have a large amount of evidence to support this idea. Therefore evolution is considered a __________________.
  7. 9. Darwin’s main idea within evolution that says those organisms that are best suited for their environment will survive to reproduce.
  8. 12. Adaptation of a beaver.
  9. 13. believe that modern organisms evolved/descended from ____________ ones. (Look in notes)
  10. 16. of the Paleozoic Era.
  11. 19. of a Vestigial structure in a human.
  12. 20. of the Precambrian Era.
  13. 21. The main difference between modern and ancient horse was the structure of their _______.
  14. 24. that are more closely related have more ______ in common.
  15. 26. The change in organisms over a long period of time.
  16. 29. The adaptation of the finches was based off of what they _____.
  17. 31. Even though we look much different than a chicken or turtle when born, we look extremely similar in _________________________.
  18. 34. Organisms that survive to reproduce will pass on their ______.
  19. 36. of the Cenozoic Era.
  20. 37. is approximately 4.5 _________ years old.