Evolution

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