biology unit 6

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Across
  1. 1. physical separation of 2 populations of same species
  2. 5. difference in time
  3. 7. adaption allowing organism to blend into enviroment
  4. 8. type of selection one extreme phenotype achieves higher fitness
  5. 9. the raw material natural selection works on
  6. 12. communication barrier, mating differences
  7. 14. type of selection both extreme phenotypes achieve higher fitness
  8. 15. type of selection average phenotype achieves higher fitness
  9. 17. transfer of genetic material usually through migration or interbreeding
  10. 18. techniques leading to better prey caught
  11. 20. arrangement of genetic material
  12. 21. permanent change in DNA sequence
Down
  1. 2. variations of a gene
  2. 3. large population gets reduced
  3. 4. where a new population, established by a small number of individuals from a larger one, ends up with different gene frequencies
  4. 6. groups of organisms of the same species that live in same place at the same time
  5. 10. type of adaption species evolve to resemble another species
  6. 11. resistance developing in some bacteria
  7. 13. evolutionary process where individuals compete for mates
  8. 16. change in allele within population due to chance
  9. 19. measure of organisms ability to survive