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