| A | B |
|---|
| natural selection | environment selecting the best adapted |
| overpopulation | production of more young than will survive |
| adaptation | a trait that provides a survival adavantage to a population |
| variation | difference in a population |
| struggle for exsistence | wars, famine, diseases |
| fossils | perserved remains of past life |
| homologous structures | structures that evidence common ancestor |
| analogous structures | structures that evidence similar adaptations to common |
| lamarck | organisms evolve by choosing to adapt |
| darwin | evolution occurs by the chance occurence of adaptive advantages |
| gradualism | formation of new species through baby steps |
| punctuated equilibrium | formation of new species through large steps |
| biogeography | study of the world distribution of organisms |
| mutation | changes in DNA |
| biochemical evidence for evolution | dna,similar blood groups, similar proteins |
| isolation | mechanism for forming a new species |
| bird wing and an insect wing | example of analogous structures |
| whale fin and a bat wing | example of homologous structures |
| Lyell | formluated the idea of uniformitarianism |
| Devries | proposed the occurence of mutations |
