Darwin and Evolution

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Across
  1. 3. All living things are descended from a _____ ancestor.
  2. 6. more individuals than the environment can support.
  3. 7. Nature does the choosing.
  4. 8. Only _____ information is passed on to offspring.
  5. 11. Species that don't change.
  6. 12. the study of the geographic distribution of organisms
  7. 13. Different species have similar structures
  8. 15. Lamarck’s theory was wrong because _______ traits are not inherited.
  9. 16. one species can turn into new species.
  10. 18. Species changes over time.
  11. 19. A species is a group of organisms that can produce fertile ______.
Down
  1. 1. Different species have similar structures as they develop.
  2. 2. individuals have greater “______________” and will live longer and produce more offspring.
  3. 4. Breeders could change a species by breeding it for certain desirable traits.
  4. 5. Natural selection acts on ____ or physical traits.
  5. 9. Darwin took a job aboard the HMS _____.
  6. 10. preserved remains of organisms
  7. 14. Changes in a species over time.
  8. 15. Structures that perform a similar function but are not similar in structure
  9. 17. A difference in a physical trait.