Biology Evolution wake tech

Biology Evolution wake tech - Evolution of Species I....

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Evolution of   Species
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I. Background A. Definition of evolution         change within or between species over  time, based on the assumption that  current species are the result of  adaptational changes to a prehistoric  ancestor (the origin of the species)  genetically passed on from generation to  generation b/c they help ensure  continuation and survival of the species
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II. The Theory of Evolution A. How did the theory of evolution come  about?     1.  the discovery of fossils = curiosity     2.  it was discovered that in sedimentary  rock fossils were similar in the same layer, but different from another layer.    
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3.  Charles Darwin discovered on an  e xpedition to  the isolated Galapagos Islands near Equador  that   the animals that survived were the ones  that seemed to adapt to the environment the  most effectively     a.  Adaptation . Adaptation  is the development of any trait that  aids in the chances for survival and thus,  reproduction of that species. This may be only  for a limited time, b/c if organisms become too  specialized this may lead to extinction.
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4.  Natural selection    a. Natural Selection  is the idea,  fundamental to evolutionary  theory, that the offspring of  parents with the most adaptive  characteristics or variations  will survive, “survival of the  fittest”.  In 1859 Darwin  wrote about evolution and  natural selection in On the  Origin of Species.
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This note was uploaded on 04/18/2008 for the course BIO 110 taught by Professor Ms.mimidavis during the Fall '07 term at Wake Tech.

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Biology Evolution wake tech - Evolution of Species I....

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