Evolution

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Across
  1. 4. selection:one of the basic mechanisms of evolution
  2. 6. organs:have no functions
  3. 10. tail:a tail of an animal that has adapted to be able to grasp or hold objects
  4. 11. drift: drift over time of gene frequencies
  5. 12. in the DNA sequence
  6. 13. Lucy was a __?
  7. 15. Survival of the ___?
  8. 18. Darwin created the theory o evolution
Down
  1. 1. isolation:Species-specific signals and elaborate behavioral patterns
  2. 2. pool:is the set of all genes, or genetic information
  3. 3. a mamal that arose from an aniaml that live in trees
  4. 5. the natural process by which life arises from inorganic matter
  5. 7. isolation:a population is separated by distance
  6. 8. walks on two legs
  7. 9. arganism survive
  8. 14. change in DNA sequence
  9. 16. isolation:Two species that breed at different times of the day
  10. 17. prehistoric organisms