Natural Selection & Adaptation

Natural Selection & Adaptation - 1/16 LIFE 1.1.2 The...

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1/16 – LIFE 1.1.2 The diversity of life is due to evolution by natural selection -Darwin proposed that living organisms are descended from common ancestors and are therefore related to one another b/c offspring resembled their parents concept of species (group of organisms that look alike and can breed successfully with one another) - natural selection : differential contribution of offspring to the next generation by various genetic types belonging to the same population -natural selection leads to adaptations (structural, physiological, or behavioral traits that enhance an organism’s chances of survival and reproduction in its environment) 1.1.7 Discoveries in biology can be generalized -all life is related by descent from a common ancestor, shares a genetic code, and consists of similar building blocks—cells // therefore, knowledge gained from investigations of one type of organism ( model systems ) can be generalized to other organisms 22.0 Snake eats poisonous newt – and lives!
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This note was uploaded on 09/02/2009 for the course BIO 315H taught by Professor Payne during the Spring '08 term at University of Texas at Austin.

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Natural Selection & Adaptation - 1/16 LIFE 1.1.2 The...

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