Darwin's Theory

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Across
  1. 3. islands studied by Darwin
  2. 8. humans breeding plants and animals to obtain desirable traits
  3. 9. random changes in DNA that can affect traits
  4. 10. he discovered natural selection
Down
  1. 1. different traits within a population
  2. 2. leads to organisms that are better adapted to their environment
  3. 4. the idea that all life on earth shares an ancestor
  4. 5. a group of the same species living together in a group
  5. 6. beneficial trait that helps an organism survive and reproduce
  6. 7. a group of organisms that can mate and produce fertile offspring