| A | B |
|---|
| artificial selection | allow individual to produce offspring |
| natural selection | artificial selection in nature |
| population | collection of individuals of species |
| gene pool | common group of genes |
| relative frequency | # of alleles for same gene occurs |
| speciation | evolving from old species |
| niche | organism's place in which it lives |
| genetic drift | random change in gene frequency |
| gradualism | evolution changes gradually |
| equilibrium | not changing very much |
