Evolution and Life on Earth-PRS

Evolution and Life on Earth-PRS - Georgia Tech School of...

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Biology 1510 Georgia Tech School of Biology Fall 2008 Evolution and modification with descent
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Biology 1510 Georgia Tech School of Biology Fall 2008 Which of the following statements about evolution are correct? A. Evolution can be thought of as the result of descent with modification. B. Evolution occurs when there is a change in the genetic composition of a population from generation to generation. C. Evolution can result from natural selection, genetic drift, gene flow, and mutation. D. All of the above are correct. E. None of the above are correct.
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Biology 1510 Georgia Tech School of Biology Fall 2008 Evolution descent with modification a change in the genetic composition of a population from generation to generation What is evolution? Pattern - hierarchical - revealed by data Process - mechanisms that produce change
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Biology 1510 Georgia Tech School of Biology Fall 2008 The tempo of evolution Punctuated equilibrium result of crisis or major genetic alterations tied to speciation events interspersed with periods of stasis “instantaneous speciation”; seems to arrive suddenly in the fossil record Gradualism gradual accumulation of morphological and physiological changes minor importance to speciation serves to fine-tune a species to its environment
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Evolution and Life on Earth-PRS - Georgia Tech School of...

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