| A | B |
|---|
| Phylogeny | the evolutionary history of one organism or a group of related organisms |
| Survival of the fittest | Darwin’s theory of natural selection. Organisms best suited to the environment are the ones most likely to survive and reproduce |
| Speciation | the formation of a new species |
| Micro evolution | process that is responsible for the variations that exist within a species or a change in the allele frequency |
| Macro evolution | evolution that occurs between species |
| ideas about evolution | may change based on new data |
| genetic drift | the random changes in genes within a population |
| Charles Darwin | British biologist |
