Unit 6 Biology

2. Type of natural selection in which individuals with one extreme phenotype have an advantage and the other extreme is selected against
4. Measurement of the ability of an individual to survive and reproduce successful offspring
5. Percent of individuals of a population that have a particular trait, number between 1 and 0
6. When organisms will impersonate other organisms to increase fitness
8. Type of selection in which individuals with the average phenotype have an advantage and extremes are selected against
10. Type of selection where those individuals best suited to their environment will achieve higher fitness
14. Group of individuals of the same species that live in the same area at the same time and can interbreed
16. Migration of new individuals into a population
17. Collection of all the alleles present in a population
19. Isolation of a population due to differences in communication, mating rituals, or other behaviors
20. Any characteristic that increases the fitness of an individual

1. Isolation a population due to physical barriers such as a fence, mountain range, or body of water
3. Refers to the differences among individuals in a population
7. Type of natural selection in which individuals at either extreme of the bell curve achieve higher fitness and the average is selected against
9. Describes the movement of genes/alleles/individuals between 2 neighboring populations
11. Selection within a population due to human interference and selection of desired traits
12. The isolation of a population due to differences in the timing of mating
13. An effect where a small part of a population is separated from the rest and colonizers a new area
15. Random changes in allele frequencies attributed to luck, not fitness
18. Migration of individuals out of a population