Evolution Choice Board

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Across
  1. 2. living organisms develop from ancestors
  2. 4. favorable genes get reproduced
  3. 5. populations evolve to become species
  4. 7. changes made due to environment
  5. 9. number of organisms of same species
  6. 11. number of genes in an organism
  7. 12. difference in DNA
  8. 13. inability to breed due to different times
  9. 14. inability to reproduce properly
  10. 15. organisms are physically separated
Down
  1. 1. based on matin rituals and signals
  2. 3. a kind of organism
  3. 6. ability to survive and reproduce
  4. 8. gene variant in a population
  5. 10. distribution of organisms