natural selection and evolution

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Across
  1. 5. a process in which organisms with desirable traits live to produce
  2. 6. father of evolution
  3. 7. thought natural processes don't change, the earth is just old
  4. 8. 2 populations separated by geographic barriers
  5. 10. choose to breed because of desirable traits
  6. 11. have a similar function but not similar development of structure
  7. 12. change in allele frequency following a dramatic decrease in size of the population
  8. 13. change in allele frequencies as a result of migration of a small subgroup of a population
  9. 15. structures that came from a common ancestor, but lost much of their original shape and function
Down
  1. 1. thought people were being born faster than dying
  2. 2. inherited from ancestors but have lost their original size and function
  3. 3. similar structures shared by related species and inherited from a common ancestor
  4. 4. 2 species reproduce at different times
  5. 9. number of times an allele occurs in a gene pool compared to all possible alleles for that gene
  6. 14. describes how well an organism can survive and reproduce in their environment