| A | B |
|---|
| evolution | process that transforms life over a LONG time |
| natural selection | each generation becomes better suited for the current environment due to genes for specific traits being passed down |
| vestigal | functioning in one organisms, non functioing in another |
| population | local group of individuals belonging to the same species |
| microevolution | change or shift in allele frequncies |
| gradualism | very small incremental changes over time forming various species |
| punctuated | short abrubt events cause species formation |
| stromatolites | banded segments of fossilized bacteris |
| RNA | perhaps the first genetic material |
