Unit 6

4. Measurement of the ability of individuals to survive, reproduce, and be successful
6. Random change in allele frequency
9. Isolation of a population due to physical barriers
11. Any characteristic that increases the fitness of an individual
12. Migration of new individuals into a population
13. All necessary or desired commodity in an ecosystem, individuals compete for these
15. On average 1 phenotype has the advantage
18. Isolation of a population due to difference in communication, mating rituals,or other behaviors
19. Type of selection in which individuals of either extreme achieve higher fitness

1. When a population experiences a rapid reduction in # of individuals
2. Type of natural selection where individuals with 1 extreme phenotype have advantage and the other extreme is selected against
3. % of individuals in a population that have a particular trait
4. When a small part of a population is separated from the rest + colonizes in a new area
5. Genes present in a population
7. When organisms will impersonate others to increase fitness
8. Group of individuals of the same species in same area that can interbreed
10. Idea that individuals best suited to their environment will achieve higher fitness
14. Refers to differences among individuals in a population
16. Migration of individuals out of a population
17. The movement of alleles/genes/individuals between 2 neighboring populations