Evolution

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Across
  1. 5. this may occur when a small group of individuals colonize a new habitat
  2. 6. farmers that practice artificial selection
  3. 10. in a gene pool, as the relative frequency of one allele for a trait increases, the frequencies of other alleles for that trait will ______
  4. 13. Darwins theory of evolution was based on....
  5. 16. number and location of fossils bones compared to living organisms shows....
  6. 18. the Galapagos finch species are a good example of....
  7. 20. mutations do not always affect its ______
  8. 22. Darwin viewed the fossil record as...
  9. 25. credited with the theory of evolution
Down
  1. 1. competition among members of a species for resources necessary for life
  2. 2. first step of speciation of the Galapagos finches was the arrival of founders from ________
  3. 3. Darwin's indication of organisms ability to survive and reproduce in their
  4. 4. all members of a population can _____
  5. 7. type of genetic drift that follows the colonization of a new habitat
  6. 8. individuals that are better suited to an environment survive and reproduce most succesfully
  7. 9. Darwins theory of evolution was based on...
  8. 11. natural selection on single-gene traits can lead to changes in ______ frequencies
  9. 12. inherited characteristic that increases chances of survival
  10. 14. preserved remains or evidence of an ancient organism
  11. 15. according to Charles Darwin, organisms must ________
  12. 17. the term fitness refers to an organisms ability to survive and _______
  13. 19. a well tested explanation that unifies a broad range of explanations
  14. 21. changes in species over time
  15. 23. Charles _____
  16. 24. in ____ populations, an allele can become more or less popular simply by chance