BIO.midtermreview1

BIO.midtermreview1 - Monday August 31 2009 What is life?...

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Monday August 31 2009 What is life? Adaptation Why study biology? o disease o ecosystem changes What is science? Types of experiments Types of reasoning What is a scientific theory? Wednesday, Sept 2, 2009 Biology before Darwin o Species are fixed and unchanging. - Linnaeus: Classification and a ladder-like hierarchy of life. o New Idea: Species can change (evolve). - Jean-Baptiste Lamark: Proposed the inheritance of acquired traits - EG Saint-Hillaire: Homology · Darwin: The theory of evolution by natural selection. o Alfred Russell Wallace · Darwin’s influences o Observations: HMS Beagle o Georges Cuvier: Fossils o Charles Lyell: Uniformitarianism, ancient earth. o Thomas Malthus: Competition o Artificial Selection: ex: Pigeons and wild mustard · Darwin made other important contributions (sexual selection…) o Single origin of life · Natural Selection is a mechanism to explain the process of evolution · “Descent with modification” results in first phylogenetic tree. · Nested classification · Evolution is a non-random process Friday, Sept 4 2009 Adaptation ex. Evolution of eyes Photoreceptor cells likely evolved just once
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BIO.midtermreview1 - Monday August 31 2009 What is life?...

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