biology assignment

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Across
  1. 6. where the organisms live
  2. 7. likelihood to reproduce
  3. 8. "the survival of the fittest"
  4. 9. an group of organisms in a single environment.
Down
  1. 1. adjusting traits to survive
  2. 2. weather
  3. 3. a type of organism
  4. 4. difference in genes
  5. 5. everyone died