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biology vocab set 8

TermDefinition
Evolution The process by which different kinds of living organisms are thought to have developed from earlier forms during the history of the earth.
Species A group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding
Natural Selection The process whereby organisms better adapted to their environment tend to survive and produce more offspring
Paleontology The branch of science concerned with fossils, animals, and plants
Coevolution The influence of closely associated species on each other in their evolution
Homologous Structure A bone or organ that appears in different animals, underlining anatomical commonalities demonstrating descent from a common ancestor
Analogous Structure Different species having the same function but evolved separately, do not share common ancestor
Vestigial Structure A structure in an organism that has lost all or most of its original function in the course of evolution
Directional Selection An extreme phenotype is favored by another phenotype
Stabilizing Selection Instead of favoring individuals with extreme phenotype, it favors the intermediate variants
Disruptive Selection Change in population genetics in which extreme values for a trait are favored over intermediate values
Created by: 104844