Campbell Biology 9th Edition - Chapter 22 Flashcards
Descent with Modification: A Darwinian View of Life
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| 1200531477 | evolution | generation-to-generation change in the proportion of different inherited genes in a population that account for all of the changes that have transformed life over an immense time | 0 | |
| 1200531478 | fossils | preserved remains of once-living organisms | 1 | |
| 1200531479 | strata | layers of sedimentary rock | 2 | |
| 1200531480 | catastrophism | a principle that states that geologic change occurs suddenly | 3 | |
| 1200531481 | uniformitarianism | is the idea that the geologic processes that operate today also operated in the past | 4 | |
| 1200531482 | paleontology | the earth science that studies fossil organisms and related remains | 5 | |
| 1200531483 | adaptation | inherited characteristic that increases an organism's chance of survival | 6 | |
| 1200531484 | natural selection | process by which individuals that are better suited to their environment survive and reproduce most successfully; also called survival of the fittest | 7 | |
| 1200531485 | artificial selection | selection by humans for breeding of useful traits from the natural variation among different organisms | 8 | |
| 1200531486 | homology | similarity in characteristics that results from common ancestry | 9 | |
| 1200531487 | homologous structures | structures that have different mature forms in different organisms but develop from the same embryonic tissues | 10 | |
| 1200531488 | vestigial structures | remnant of a structure that may have had an important function in a species' ancestors, but has no clear function in the modern species. | 11 | |
| 1200531489 | evolutionary tree | A branching diagram that reflects a hypothesis about evolutionary relationships among groups of organisms. | 12 | |
| 1200531490 | convergent evolution | process by which unrelated organisms independently evolve similarities when adapting to similar environments | 13 | |
| 1200531491 | analogous | Having characteristics that are similar because of convergent evolution, not homology. | 14 | |
| 1200531492 | Pangaea | the name of the single landmass that broke apart 200 million years ago and gave rise to today's continents | 15 | |
| 1200531493 | endemic | native or confined to a particular region or people; characteristic of or prevalent in a field | 16 | |
| 1200531494 | biogeography | dealing with the geographical distribution of animals and plants | 17 |