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Lecture

Organizing the Living World lecture notes.doc

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Department
Biology
Course
BIO1130
Professor
Jon Houseman
Semester
Winter

Description
Organizing the Living WorldSlide 2 classificationputting objects in ordered categoriessubdividing larger groupstaxonomyrules for classification classification by a set of rulessystematicsapplication of the rules of evolution to classification of the living world Linnaeus gives us the hierarchial system that is associated with it hierarchialhierarchial rules associated with systematicsbased on dichotomies yes or no single things that branch into twodichotomies are the basis of classification systems Slide 4folk taxonomyoldest classification system based on words only passed on verballyheld by an elderleader who knew the most important characteristics of organismsdivided the living world into living and nonliving limited due to pure memorization artificial taxonomylists allows for more complex lists which surpass the limitations of the mind and memorization associated with Aristotle mechanical taxonomyarbitrarily categorizing organisms no necessary relationship associated with Linnaeus categorizing may not necessarily be reflectednatural evolutionary taxonomyassociated with Darwin based on evolutionary similaritieslooks at morphological similarities that identify similar groupsshared characteristicshard ancestor looks athomoplasy or homologous
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