Class_7_2010_web - IB35 Human Biological Variation Class #7...

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1 IB35 Human Biological Variation Class #7 Topics for today: Variation, speciation, and heritability Typological Approach to Variation •P la to • Linnaeus • Taxonomic nomenclature Naming a new species – Naming a new species – The type specimen (holotype) – The paratypes time is static… Holotype • Specimen # MVZ 43898 (skin & skull) • Hall E. R. 1934. Univ. California Publ. Zool., 40(9):369 Canis latrans incolatus • Isaacs Lake, British Columbia, Canada Species Concepts Biological species concept = species are groups of interbreeding natural populations that are reproductively isolated from other such groups Evolutionary species concept = a lineage that maintains its integrity with respect to other lineages through both time and space Intro to Statistics mean = the average of all the items in a sample ( μ ) variance = a measure of how spread out your data are (the mean of the squares of your data are (the mean of the squares of the differences between the respective samples and their mean) ( σ 2 ) Mean = 5’7.5” N=160
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2 N x 2 2 ) ( X = one measurement (data point) μ = the mean = the sum of… N = the number of data points in your sample σ 2 σ 2 σ 2
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This note was uploaded on 11/26/2010 for the course IB 35AC taught by Professor Hlusko during the Spring '08 term at University of California, Berkeley.

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Class_7_2010_web - IB35 Human Biological Variation Class #7...

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