Natural Selection Vocabulary

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Across
  1. 2. a measure of an organisms ability to survive and produce more offspring
  2. 5. relating to a large city
  3. 6. the differences that exist in every population (one of the principles of natural selection)
  4. 7. when small plots of soil are spread apart from each other
  5. 11. when a population of organisms has too many offspring (one of the principles of natural selection)
  6. 12. populations having offspring that are slightly different than their parents (one of the principles of natural selection) (3 words, no spaces)
  7. 13. humans selecting favorable traits in animals or plants and breeding organisms with those traits (2 words no space)
Down
  1. 1. all of the individuals of a species that live in the same area
  2. 3. an external force that impacts an organisms ability to survive, leading to natural selection (2 words no space)
  3. 4. mechanism by which organisms produce beneficial adaptations that help them survive better (2 words no space)
  4. 8. the process of increasing an urban area
  5. 9. the ability of a trait to be passed down from one generation to the next
  6. 10. a trait that develops over time and and allows organisms to better survive in a new or changed environment