Natural selection

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Across
  1. 8. The change in characteristics of a species over many generations.
  2. 9. The share of traits and characteristics in a population
  3. 10. The animals that were born and lived around the same time
  4. 12. An individual animal or plant
Down
  1. 1. The process of adjusting to your surroundings
  2. 2. The changing of the structure of a gene
  3. 3. A trait that is beneficial for survival
  4. 4. The conditions and surroundings around us
  5. 5. A group of living organisms consisting of similar traits and genes
  6. 6. A different form or version of something
  7. 7. The heredity of which determines the characteristic of an offspring
  8. 11. A quality or characteristic