Natural Selection

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Across
  1. 4. _____darwin
  2. 6. the transmission of traits or information from one generation of individuals or cells to the next.
  3. 8. the change in the characteristics of a species over several generations
  4. 9. a change or difference in condition, amount, or level, typically with certain limits.
  5. 10. charles____
Down
  1. 1. a theory of biological evolution made by charles darwin
  2. 2. remains of animals
  3. 3. the branch of biology that deals with phylogenesis.
  4. 5. natural______
  5. 7. existing in or caused by nature; not made or caused by humankind.