Terms : Hide Images
| 8599930232 | evolution | change in a kind of organism over time; process by which modern organisms have descended from ancient organisms |  | 0 |
| 8599930233 | speciation | formation of new species |  | 1 |
| 8599930235 | natural selection | process by which individuals that are better suited to their environment survive and reproduce most successfully; also called survival of the fittest | 2 | |
| 8599930236 | gene pool | all of the alleles (gene variations) in all the individuals that make up a population |  | 3 |
| 8599930238 | reproductive isolation | separation of species or populations so that they cannot interbreed and produce fertile offspring | 4 | |
| 8599930239 | convergent evolution | process by which unrelated species become more similar as they adapt to the same kind of environment |  | 5 |
| 8599930241 | parallel evolution | the development, through natural selection, of similar characteristics (morphology, behavior) in two unrelated species subjected to similar environmental conditions. |  | 6 |
| 8599930244 | genetic drift | changes in gene pool of a population due to chance rather than viability of offspring |  | 7 |
| 8599930245 | population bottleneck | form of genetic drift in which a population becomes extremely small; may lead to differences in allele frequencies and a loss in genetic variability |  | 8 |
| 8599930246 | microevolution | short time scale events (generation-to-generation) that change phenotypic ratios |  | 9 |
| 8599930247 | macroevolution | long time scale events that cause extinction and speciation |  | 10 |
