Biology Crossword Puzzle

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Across
  1. 2. the ability of an individual to survive and reporduce in a particular enviorment
  2. 4. a trait that enhances an organisms ability to survive and reproduce
  3. 5. the process where certain traits become less common
  4. 7. over successive generations
  5. 8. the differences in traits
Down
  1. 1. the passing traits from parents offspring
  2. 3. the change in the heritable characteristics of biological
  3. 6. selection when your DNA picks the traits that will help you survive in your life