BS 110 Notes 10-1-2010

BS 110 Notes 10-1-2010 - BS 110 Notes 10-1-2010 Natural...

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BS 110 Notes 10-1-2010 Natural selection results in adaptations of populations of organisms to both the physical and biological environment Cryptic coloration – type of camouflage that makes prey difficult to detect by predators. Can be due to physical or biological environment Patterns of Evolutionary Change: Convergent Evolution – when two or more species or other taxonomic groups that are not closely related evolve similar structures or adaptations due to similar environmental selection pressures acting on them Parallelism – when two or more species or other taxonomic groups that are closely related evolve similar structures or adaptations due to similar environmental selection pressures acting on them Divergent Evolution – a population of organisms becomes separated from the rest of the species and due to different environmental selection pressures, goes on a different evolutionary pathway and evolves into a new species Environmentally Induced Variation: Limpet Species (Marine Mollusk)
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BS 110 Notes 10-1-2010 - BS 110 Notes 10-1-2010 Natural...

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