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Evolution
Biology Words
| Term | Definition |
|---|---|
| Adaptations | An inherited characteristic that enhances an organisms ability to survive and reproduce in a particular environment |
| Artificial Selection | The selective breeding of domesticated plants and animals to promote the occurrence of desirable traits |
| Biogeography | The study of past and present distributions of organisms |
| Evolution | Descent with modifications; the idea that living species are descendants of ancestral species that were different from present day ones; also the genetic changes in a population over generations |
| Extinction | The irrevocable loss of a species |
| Fossils | A preserved remnant or impression of an organism that lived in the past |
| Fossil Record | The chronicle of evolution over millions of years of geologic time engraved in the order in which fossils appear in rock strata |
| Gene Pool | All the alleles for all the genes in a population |
| Homology | Similarity in characteristics resulting from a shared ancestry |
| Homologous Structures | Structures in different species that are similar because of common ancestry |
| Microevolution | A change in a population's gene pool over generations |
| Natural Selection | A process in which organisms with certain inherited characteristics are more likely to survive and reproduce than are organism with other characteristics |
| Paleontologist | A scientist who studies fossils |
| Population | A group of individuals belonging to one species and living in the same geographic area |
| Vestigial Organs | A structure of marginal or no importance to an organism; historical remnants of structures that had important function in ancestors |