class Notes from Durbands Lectures

class Notes from Durbands Lectures - Thursday, September...

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Thursday, September 20, 2007 Natural selection- operates on the phenotype, the physical expression. It differs from the other types of evolution, but the other type works on the genotype. Survival of the fittest is only half the battle, you have to reproduce so its reproduction of the fittest. Individuals don’t evolved the population evolves because of the small changes to the gene pool. Successful reproduce and unsuccessful don’t reproduce. A certain individual don’t change but its what they contribute to the furred gene pool Lianas started the taxonomy, specifically the process of naming things. We look at characitsts on the bones to determine if the species are related to eachohter. o Homology vs. Analogies o Homologous vs. Analogous The first step to determine if the critters are similar or different o Homology- similarity based on common structure that implies decent from a common ancestor: we want to look at the way common species are structured, the architecture of the species. o Analogies- similarity based on a common function with no assumed common evolutionary decent. we can have a structure that looks similar to
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class Notes from Durbands Lectures - Thursday, September...

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