311d_feb._9_2007 - accumulate Heritable changes accumulate...

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Bio 311D Feb. 9, 2007 Agents of Evolutionary Change ● Adaptation ● Cladogenesis vs. Anagenesis ● Reproductive barriers ● Allopatric vs. Sympatric Speciation ● Adaptive Radiation ● Gradualism vs. Punctuated Equilibrium
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Example of Adaptation 2 Bats: Only known flying mammals
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3 Cladogenesis vs. Anagenesis Cladogenesis is the basis for biological diversity Heritable changes accumulate Heritable changes
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Unformatted text preview: accumulate Heritable changes accumulate Gradualism vs. Punctuated Equilibrium 4 Reproductive Barriers: Pre-Zygotic and Post Zygotic 5 Allopatric vs. Sympatric Speciation 6 Can divergence of allopatric fruit fly populations lead to reproductive isolation? 7 Plants: Sympatric Speciation by Autopolyploidy 8 How a fertile hybrid can be produced via polyploidy 2 Adaptive Radiation...
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311d_feb._9_2007 - accumulate Heritable changes accumulate...

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