moritz2-1 - Bio1B Evolution 2 Last lecture: Introduction to...

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1 Bio1B Evolution 2 Last lecture: Foundations Pre-Darwinian background Darwin: early influences, Beagle voyage Wallace Today Natural selection - principles, lines of evidence in the “Origin” Descent with modification Some major insights about the “Tree of Life” 3 kingdoms: Archaea, Bacteria, Eukarya Assembling the eukaryote cell On-line resources : Understanding Evolution (UCMP): http://evolution.berkeley.edu/ Tree of life: www.tolweb.org/tree/ 2 The Darwin-Wallace principle of Natural selection • Individuals within a population vary for one or more characteristics (traits) • Traits are (to some extent) inherited by offspring from their parents • More offspring are produced than can survive => those with traits that improve survival/reproduction leave more offspring => these favorable traits will accumulate in the
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moritz2-1 - Bio1B Evolution 2 Last lecture: Introduction to...

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