Evolution Vocabulary

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Across
  1. 2. a group of individuals who belong to the same species and live in the same area
  2. 5. A scientist who studies fossils
  3. 6. A graph of vertical bars representing the frequency distribution of a set of data
  4. 8. the very long time that spans the history of Earth, from the very first cellular life to the present
  5. 10. Based on observation or experiment, not on theory
  6. 13. the process by which species adapt to environmental change over a very long time
  7. 14. an older population from which two or more newer species descended
  8. 15. no longer in existence
Down
  1. 1. body structure in two or more species that features the same parts for example the same bones
  2. 3. A part of an organism
  3. 4. a trace of a once living organism
  4. 7. the formation of new and distinct species in the course of evolution
  5. 9. sharing a common ancestor population
  6. 11. arm,leg, wing
  7. 12. when something stays mostly the same over time