BIOL 1005 Chapter 14: Chapter 14 Vocabulary
3 Oct 2015
School
Department
Course
Professor
Document Summary
Analogous structure structures that have similar functions and superficially similar appearance but very different anatomies, such as the wings of insects and birds. The similarities are the result of similar environmental pressures rather than a common ancestry. Artificial selection a selective breeding procedure in which only those individuals with particular traits are chosen as breeders; used mainly to enhance desirable traits in domesticated plants and animals; may also be used in evolutionary biology experiments. Convergent evolution the independent evolution of similar structures among unrelated organisms as a result of similar environmental pressures. Fossil the remains of a dead organism, normally preserved in rock; may be petrified bones or wood; shells; impressions of body forms, such as feathers, skin, or leaves; or markings made by organisms, such as footprints. Homologous structure structures that may differ in function but that have similar anatomy, presumably because the organisms that possess them have descended from common ancestors.
