Biology Unit 6 Vocab

8. When organisms will impersonate other organisms to increase fitness
9. Describes the movement of genes/alleles/individuals between 2 neighboring populations - makes populations more alike
11. Random changes in allele frequencies attributed to luck, not fitness
13. Hardy-Weinberg equation that states that all the dominate alleles (p) + all the recessive alleles (q) represent all the alleles present in a population
14. Any characteristic that increases the fitness of an individual
15. The idea that those individuals best suited to their environment will achieve higher fitness
16. Isolation of a population due to differences in communication, mating rituals, or other behaviors
18. Measurment of the ability of an individual to survive and reproduce successful offspring
19. A small part of a population is separated and colonizes a new area - responds differently to natural selection
20. Selection within a population due to human interference and selection of desired traits

1. Isolation of a population due to physical barriers such as a fence, mountain range, or body of water
2. Type of natural selection in which individuals with one extreme phenotype have an advantage and the other extreme is selected against
3. Refers to the differences among individuals in a population
4. State of genetic equilibrium characterized by a large population, no migration, no natural selection
5. Type of natural selection in which individuals with one extreme of the bell curve achieve higher fitness and the average is selected against
6. Collection of all the alleles present in a population
7. Percent of individuals of a population that have a particular trait - expressed as a number between 0 and 1
10. Group of individuals of the same species that live in the same area at the same time and can interbreed
12. Isolation of a population due to differences in the timing of mating
17. Migration of new individuals into a population