BIOLOGY 120 Study Guide - Quiz Guide: Sympatric Speciation, Allopatric Speciation, Punctuated Equilibrium
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Species= a group of organisms with similar morphology and can breed to produce viable offspring. Example: horse and a donkey makes a mule not viable, therefore different species. Anagenesis= evolution without generating a new species. Cladogenesis= evolution with generating a new species. Aristotle proposed earth could be explained by natural laws. Cuvier discovered fossils and noticed changes in morphology. Lamarck proposed that organisms change over time. Linn grouped organisms together based on morphology. Dkpcofgs= domain, kingdom, phylum, class, order, family, genus, species. Dumb king phillip came over from germany stoned. Hutton proposed earth was millions of years old. Malthus suggested organisms fought over resources to survive. Evolution= change over time (descent with modification) Darwin: suggested species change over time (gradualism) Gould: suggested that speciation occurs in bursts (punctuated equilibrium) Natural selection= the process in which the more adapted (fit) individuals survive and reproduce. Occurs if: variation in population, limiting resource, heritable traits (genetics)