Terms : Hide Images
| 1397344991 | Gene pool | all genes, including all the different alleles, that are present in a population | 0 | |
| 1397344992 | Directional selection | when individuals at one end of a distribution curve have higher fitness than indivduals in the middle or at the other end of the curve | 1 | |
| 1397344993 | Stabilizing selection | when individuals near the center of a distribution curve have higher fitness than individuals at either end | 2 | |
| 1397344994 | Disruptive selection | natural selection that favors individuals at either extreme of the ends of a distribution curve for a trait | 3 | |
| 1397344995 | Genetic drift | a form of evolution that is caused by random change in allele frequencies, and that often occurs in small populations | 4 | |
| 1397344996 | Founder effect | change in allele frequencies as a result of the migration of a small subgroup of a population | 5 | |
| 1397344997 | Speciation | formation of a new species | 6 | |
| 1397344998 | Reproductive isolation | separation of species or populations so that they cannot interbreed often results in speciation. | 7 | |
| 1397344999 | Behavioral isolation | form of reproductive isolation in which two populations have differences in courtship rituals or other types of behavior that prevent them from interbreeding | 8 | |
| 1397345000 | Geographic isolation | form of reproductive isolation in which two populations are separated physically by geographic barriers such as rivers, mountains, or stretches of water | 9 | |
| 1397345001 | Temporal isolation | form of reproductive isolation in which two populations reproduce at different times | 10 | |
| 1397345002 | Adaptive Radiation | when an ancestral species gives rise to many species to fit a number of different habitats | 11 | |
| 1397345003 | Divergent Evolution | evolution that occurs when closely related species occupy different environments and develop different adaptations due to selection pressures | 12 | |
| 1397345004 | Convergent Evolution | evolution that occurs when distantly related species occupy similar environments and develop similar adaptations due to selection pressures | 13 | |
| 1397345005 | Homo neanderthalensis | lived 200,000-24,000 years ago. Large brain. Buried their dead. Possibly had a language. (Went extinct about 24,000 years ago). | 14 | |
| 1397345007 | Population | Group of one species that interbreed and live in the same place at the same time. | 15 | |
| 1397345008 | Hominids | Primates that can walk upright. | 16 | |
| 1397345009 | Homo | the genus that humans belong to. | 17 | |
| 1397345010 | Fumarase deficiency | genetic disorder that is increasing in the Southern Utah polygamist community due to genetic drift. | 18 | |
| 1397345011 | Species | group of similar organisms that can breed and produce fertile offspring | 19 | |
| 1397345012 | Gradualism | idea that evolution occurs slowly but steadily | 20 | |
| 1397345013 | Punctuated equilibrium | pattern of evolution in which long stable periods are interrupted by brief periods of more rapid change | 21 | |
| 1397345014 | Fitness | ability of an organism to survive and reproduce in its environment | 22 | |
| 1397345015 | Phenotype | The physical traits that appear in an individual as a result of its gentic make up. | 23 | |
| 1397345016 | Genotype | the genetic makeup of an organism | 24 | |
| 1397345017 | Alleles | alternative versions of a gene | 25 | |
| 1397345018 | Graph of Directional Selection |  | 26 |
