Crossword

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Across
  1. 2. principle that landforms resulted from slow changes
  2. 3. individual species of an area
  3. 4. ability of a trait to be passed down
  4. 10. process where humans select breeding for traits
  5. 11. the process of biological change
  6. 12. difference in physical traits
Down
  1. 1. theory that geologic proccesses shaped earth
  2. 5. a feature that allows an organsim to live in its enviro.
  3. 6. group of organisms
  4. 7. a measure of ability to survive and produce
  5. 8. traces of an organism
  6. 9. study of the distribution of organisms