Evolution

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Across
  1. 4. and rapid decrease in many populations MassExtinction
  2. 5. environment favors organisms with traits that help them survive and reproduce fitness
  3. 7. reproductively successful in a particular environment NaturalSelection
  4. 8. of genetic drift NaturalDisaster
  5. 10. inheritable trait that increases fitness Adaptation
Down
  1. 1. evolution that occurs by chance GeneticDrift
  2. 2. process of generating new species Speciation
  3. 3. in the gene pol of a population over time Evolution
  4. 4. one species is separated Into 2 or more groups by changes in land, such as floods or volcanoes GeographicalIsolation
  5. 5. disappearance of a species from Earth Extinction
  6. 6. favor organisms with traits that help humans ArtificialSelection
  7. 9. section of DNA that codes for a particular trait Gene