Biology 1001A Chapter Notes - Chapter 16: Parallel Evolution
27 Dec 2015
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Document Summary
Evolution of flight illustrates potential difficulty in recognizing parallel and convergent evolution: determining evolutionary relationships among organisms/deciding if similar structures of similar-looking structures are grounds for grouping species. If they look similar, are they evolutionary closely related. There is a tendency for organisms living under the same conditions to develop similar body forms: process of natural selection, can be parallel or convergent evolution, depending on evolutionary relatedness of organisms. Convergent evolution: used when referring to phylogenetically more distantly related organisms. Parallel evolution: used when referring to more closely related organisms and odour. 20. 6a: case 1: what looks like a flower may not be one. Insectivorous plants catch insects in sticky traps, snap traps and pitfall traps. Flypaper traps appeared in at least 5 evolutionary lines of plants and pitchers at least 3 times.
