BIOL 1111 Chapter 19: Chapter 19

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Species: population of organisms capable of interbreeding and producing fertile offspring. A species should be genetically distinct from other species: doesn"t work for asexual reproducers or darwin"s nches because they hybridize. The diversity of living organisms makes it challenging to have one all-encompassing de nition of the word species. Variation in reproductive patters complicates the application of the species concept, as does hybridization, the reproduction involving more than one species. Taxonomy: the science that identi es, names, and classi es new species. Species are assigned a latinized 2 part name (binomial) First part of the name identi es a genus, a group of species with similar characteristics. The second part is the speci c epithet. Linnaeus described and named thousands of species on basis of their morphological similarities and differences. He devised a classi cation, a conceptual ling system that arranges organisms into even larger, inclusive categories. Domain, kingdom, phylum, class, order, family, genus, species, subspecies.

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