BS 110 Notes 10-4-2010

BS 110 Notes 10-4-2010 - BS 110 Notes 10-4-2010 Species and...

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BS 110 Notes 10-4-2010 Species and Speciation: Species – composed of one or more populations made up of actually or potentially interbreeding individuals o If the species is composed of two or more populations, each population has a slightly different gene pool and lives in a slightly different environment. o Biological Species Concept – individuals of one species should not be able to interbreed with individuals of another species and produce viable offspring. Ex: Bird Species in Mexico called the Towhees – individuals of two species can interbreed and produce viable offspring that can reproduce o Morphospecies Concept – species is a group of anatomically similar individuals Speciation – the formation of new species or other taxonomic groups through evolution o Two Modes: Allopatric Speciation – Different land/area Vicariance - the formation of some type of a barrier that separates populations and due to different natural selection pressures and different
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This note was uploaded on 01/31/2011 for the course BS 110 taught by Professor S.lawrence during the Fall '07 term at Michigan State University.

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BS 110 Notes 10-4-2010 - BS 110 Notes 10-4-2010 Species and...

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