| A | B |
| Consists of interbreeding populations of organisms that can produce healthy, fertile offspring | Species |
| the differences between individual members of a population | Variation |
| an inherited trait that increases a population's chances of survival and reproduction in a particular environment | Adaption |
| a habbit and role a population plays inthat habitat | Niche |
| the preserved remains or mprints of ancient organisms | Fossils |
| A change over time | Evolution |
| Selecting parental generation with the most desirable characteristics | Artificial Selection |
| The process that shapes adaption | Natural Selection |
| Proposes that new species evolve as the genomes of two populations differentiate over enormous spans of time | Gradualism |
| populations remain genetically sstable for long periods of time, interupted by a brief periods of rapid genetic change | punctuated equilaibrium |
| The evolution of one or more species from a single ancestor species | Speciation |
| When isolated populations eveolve independently | divergent evolution |
| When conrelated speciesdisplay similar features | convergent Evolution |
| Evolution of many diversely adapted species from one common ancestor | Adaptive radiation |
| the combinated genetic material of all the members of a given population | Gene pool |
| In any gene ppol, the number of each alle is a fraction of the genes for a particular trait | Allele Frequencies |
| Constant state of allele frequency | Genetic Equilibrium |
| The random change in allele frequencies in a population due to chance events | Genetic drift |
| A shift in frequency to an extreme phenotype | Directional selection |
| A selection that does not favor the most common variation within a population | Disruptive Selection |