unit6vocab

7. isolation of a population due to differences in timing of mating.
8. necessary or desired commodity in an ecosystem.
15. individuals with one extreme phenotype have an advantage and the other is selected against.
16. a change in allele frequency following a dramatic reduction in the size of a population.
17. migrations of individuals out of a population.
18. collection of all the alleles present in a population.
21. movement of alleles into or out of a population due to the migration of individuals to or from the population.
22. anycharacteristic that increases the fitness of an individual.
24. movement of individuals into a population.
25. isolation of a population due to differences in communication, mating rituals, etc.

1. refers to the differences among individuals in a population.
2. form of reproductive isolation in which two populations are separated physically by geographic barriers such as rivers, mountains, or stretches of water.
3. a group of individuals that belong to the same species and live in the same area.
4. individuals at either extreme or the bell curve achieve higher fitness and the average selected against.
5. percent of an individual of a population that have a particular trait.
6. organisms impersonate other organisms to increase fitness.
9. individual with the average phenotype have an advantage.
10. large population, no migration, no natural selection, no mutations, random mating.
11. when a small part of a population is separated from the rest and colonizes a new area.
12. measurement of the ability of an individual to survive and reproduce successful offspring.
13. random change in allele frequencies that occurs in
14. individual best suited to their environment achieve higher fitness.
19. 1 dom and all rec represent all alleles in a population.
20. selection within a population due to human inference and selection to desired traits.
23. homozygous dom and all heterozygous and all homozygous rec represent all individuals in a population.