Bio Puzzle: Evolution Final

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Across
  1. 3. Darwin spent time studying variations in the ______ Islands
  2. 6. Members of a population can _____
  3. 7. Selection that is best to be either of the extremes but bad to be average
  4. 11. As the relative frequency of one allele for a trait increases, the relative frequencies of other alleles for that trait _____
  5. 14. A well tested explanation that unifies a broad range of observations
  6. 16. Natural selection on single-gene traits can lead to changes in ________frequencies.
  7. 17. When a small group of individuals may colonize a habitat genetic _____ may occur
  8. 20. Artificial selection is also known as selective _____
  9. 22. Situation in which allele frequencies in a population remain the same and the population will not evolve is genetic ______
  10. 23. Organ that serves no useful function in an organism but shows a link to a common ancestor
  11. 24. In selective breeding, ____ breeders choose the traits that will be passed down
  12. 25. Principle that species descended with changes from other species is decent with ______
Down
  1. 1. Darwin's theory of evolution was not influenced by the knowledge of ____
  2. 2. The _____ effect is the type of genetic drift that follows the colonization of a new habitat by a small group
  3. 4. Members of a specific species must _____ for limited resources
  4. 5. Last name of the person credited with the Theory of Evolution
  5. 8. Mutations do not always affect an organism's _______
  6. 9. Preserved remains of an ancient organism
  7. 10. An organisms ability to survive and reproduce in a particular environment
  8. 12. Change in species over time
  9. 13. Inherited characteristics that increase chance of survival
  10. 15. Individuals best suited to their ______ survive and reproduce more successfully
  11. 17. Selection that is best to be one of the extremes
  12. 18. Selection that is best to be average
  13. 19. In what type of population can an allele become more or less frequent just by chance
  14. 21. Drift that can occur when a small group of individuals colonize a new habitat