| Term | Definition |
|---|
| comparative anatomy | The comparison of body structures and how they vary among species |
| homologous | similarity of form among speciees due to common ancestry |
| analogous | similarity of structure between two species that are not closely related; attributable to convergent evolution |
| comparative embryology | The comparison of early stages of development |
| biogeography | The study of the geographic distribution of species |
| the fossil record | The fossil species that have been found and their ordered array within layers of sedimentary rock, which provides evidence for the time periods in which those species existed. |
| molecular biology | The study of sequence data (nucleotides, peptides) for common biological molecules such as DNA, RNA, and ribosomal proteins and how these sequences differ among species |
| natural selection | reproductive success is unequal, and those individuals best meeting demands of the environment have the greatest reproductive success |
| artificial selection | The selective breeding of domesticated plants and animals to enhance particular traits. |
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