Evolution Crossword

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Across
  1. 6. They are similar in design, but different in function.
  2. 8. When offspring of a recent common ancestor diverge because they are adapted by different environments.
  3. 9. The process by which ancestral species evolve into a number of different species.
  4. 10. The process of determining an age on a specific time scale in achaeology and geology.
  5. 11. A group of the same species in the same area.
  6. 12. When organic materials in tree tissue leech out and are replaced by minerals.
Down
  1. 1. How well suited an organism is to its environment.
  2. 2. The result of geographic isolation and niches to be filled.
  3. 3. They are similar in function, but different in design
  4. 4. When you estimate the age of something compared to something else.
  5. 5. Impressions or indentations in rock.
  6. 7. Genetic change in a population over time.