| Term | Definition |
|---|
| 1831 | Voyage of the Beagle |
| Divine Creation | notion which dominated thinking in Darwin's day |
| Darwin's 5 Theories | perpetual change, common descent, multiplication of species, gradualism, natural selection |
| evidence of perpetual change | documented by fossil record |
| evidence of common descent | phylogeny, morphology; homologous structures and branching of species |
| evidence of multiplication of species | reproductively distinct; speciation; adaptive radiation |
| 2 types of speciation | allopatric and sympatric |
| evidence of adaptive radiation | Darwin's finches |
| population gradualism | gradual spread of trait among population; well accepted |
| phenotypic gradualism | gradual production of actual trait; controversial (i.e. selective breeding) |
| natural selection | mechanism for adaptation & biological diversity |
| more offspring are produced | than can survive to reproduce |
| variation | rule in nature; may be inherited |
| traits which are more beneficial | will be passed on generation to generation at the expense of those less advantageous traits |
| 3 evolutionary responses to selection | stabilizing, directional, & disruptive |
Combine with other sets
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