Practice_questions - PRACTICE QUESTIONS ON LECTURES 19 25...

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PRACTICE QUESTIONS ON LECTURES 19 – 25 FOR FINAL EXAM Correction on Reading from textbook: For lecture 22, I asked you to read pp. 419-459 in Ch. 19 (along with other sections). This should have read pp. pp. 449 -459. 1. Define the biological species concept (BSC) and identify two of its limitations (i.e., instances where it doesn’t “fit” very well) 2. How do the biological species concept and phylogenetic species concept differ? 3. Why are barriers to gene exchange important to speciation? 4. What is the difference between an extrinsic and and intrinsic barrier? Give an example of both 5. Know the difference between prezygotic (both pre-mating and post-mating) and postzygotic barrier and examples. 6. Why is the spatial context of speciation important? 7. In order for speciation to occur, in what geographic context(s) must natural selection be an important factor in divergence of lineages?
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This note was uploaded on 09/28/2008 for the course BIOEE 2780 taught by Professor Geber during the Fall '07 term at Cornell University (Engineering School).

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Practice_questions - PRACTICE QUESTIONS ON LECTURES 19 25...

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