ANTH 101 1st Edition Lecture 7 Outline of Last Lecture I Evolution Group Class Discussion II Homework III What Can Evolution Tell Us About Human Variation IV Vocabulary V Evolutionary Processes Outline of Current Lecture II Macroevolution III Vocabulary IV Acclimatization Current Lecture II Macroevolution studies evolution at or above the species level over extremely long stretches of geological time and concerned with tracing the extinction A Darwin nailed it B Phyletic Gradualism Darwin s theory arguing that one species gradually transforms itself into a new species over time C Anagenesis the slow gradual transformation of a single species over time D Cladogenesis the birth of a variety of descendent species from a single ancestral species E Punctuated Equilibrium theory claiming that most evolutionary history has been characterized by relatively stable species coexisting in equilibrium III Vocabulary A Gene Interaction a single gene may contribute to the production of more than one phenotypic feature B Gene of Major Effect a gene at one locus whose expression has a critical effect on phenotype C Plasticity physiological flexibility that allows organisms to respond to environmental stresses IV Acclimatization a change in the way the body functions in response to physical stress shivering when cold A longer term exposure to stressor These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute B change is measurable C example increased lung capacity
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