biology unit 6

3. state of genetic equilibrium
4. random changes in allele frequencies attributed to luck, not fitness
7. raw material natural selection works on
9. isolation of a population due to a physical barriers
12. migration of individuals leaving the population
14. type of natural selection in which one extreme phenotype achieves higher fitness
15. isolation of a population due to differences in the timing of mating
16. percent of individuals of a population that have a particular trait
18. change over a period of time
19. the idea that those individuals best suited to their environment will achieve higher fitness
20. selection within a population due to human interference and selection of desired traits
23. isolation of a population due to differences in communication
24. individual removed from parasites,predators
25. any characteristic that increases the fitness of an individual

1. group of individuals of the same species that live in the same area at the same time and can interbreed
2. when a large population is cut down to a much smaller one
5. collection of all the alleles present in a population
6. type of natural selection in which both extremes achieve higher fitness
8. genetically modified organisms
10. type of natural selection where the average phenotype has the advantage
11. when a small part of a population is separated from the rest and colonizes a new area
13. desribes the movement of genes and alleles between populations
17. measurement of the ability of an individual to survive and reproduce successful offspring
21. migration of new individuals into a population
22. when organisms will impersonate other organisms to increase fitness