BIO 124 Lecture Notes - Lecture 7: Richard Goldschmidt, Paraphyly, Willi Hennig
23 Oct 2017
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Key innovation the evolution of a trait that enables species to adapt to new environments or lifestyles. When a species evolves constantly in small changes over a long period of time. There is a rapid period of phenotypic changes and then there are no changes for a long period of time: what are the nine general patterns in the history of the earth? relatively rapid. Name & explain the 2 types of mimicry. Convergent evolution: batesian mimicry: involves a toxic model and a palatable mimic, mullerian mimicry: involves multiple toxic species, which are all similar in appearance. Predators learn to avoid all similar looking species. States that complex irreversible traits that are once lost are unlikely to be regained. Same characters found in different taxa due to convergent evolution or reversal homoplasy. Define them: neighbor-joining: finding the percent difference between taxa, maximum likelihood: calculates the likelihood of observing the data, bayesian: maximizes the probability of observing a particular tree.
