unit 6

3. Flow: describes the movement of genes alleles/individuals between 2 neighboring populations-makes populations more alike
4. Effect: when a population experiences a rapid, drastic reduction in the number of indurderals in the population- reduces variation & changes allele frequencies of the population
7. migration of individuals out of a population
9. Selection: type of natural selection in which individuals at the aster extreme of the bell curve achieve higher fitness and the average Is selected against.
10. when organisms will impersonate other organisms to increase fitness
14. selection: suited to their environment will achieve higher fitness
15. Allele Frequency: percent of individuals of a population that have a particular trait - expressed as a number between o 1
17. Selection: selection within a population due to human interference + selection of desired traits
18. a necessary or desired commodITy In an ecosystem - individuals of a population
19. Selection: type at natural selection in which individuals with one extreme phenotype have an advantage and the other extreme is selected against

1. Selection: Aupe of natural selection in which individuals wilhe the average phenolase have an advantage and the extremes are selected against
2. Variation: refers to the differences among individuals in a population
5. Pool: Collection of all the alleles present in a population
6. Effect: when a small part of a population is separated from the rest and colonizes a new area - they often respond differently to natural selection pressures
8. migration of new individuals into a
11. Drift: random changes in allele frequencies attributed to luck, not fitness
12. any characteristics that moreases the fitness of an individual
13. compete for these
16. - Weinberg Equilibrium: State of genetic equilibrium characterized by a large population, no migration, no