The History of Life

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Across
  1. 2. Maximize the usefullness of resources
  2. 5. Ideas people reason from
  3. 7. All living things descended from a single life form
  4. 8. Out of nothing
  5. 9. Father of evolution
  6. 10. Perspective that interprets the world
  7. 13. Only things we know with confidence are the things we learn through scientific study
  8. 16. Those who believe in Christian perspective
Down
  1. 1. The concept that mutation supplies the variations and natural selection determines survivability
  2. 3. The origin of life from nonliving substances
  3. 4. The concept that the environment determines what an individual is
  4. 6. Evidence embedded in the earth's crust
  5. 11. Developed the use and disuse theory
  6. 12. Measured by the production and survival of its offspring
  7. 14. An organ when infected must be removed
  8. 15. structure Similar in structure but perform different function
  9. 17. An organ part of the body's defense against diseases