Study Guide - Origin of Species

Study Guide - Origin of Species - prevention of gamete...

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Study Guide – Origin of Species After attending the lecture and reading Chapter 24 you should be able to define and appropriately use the following terms: Sympatric speciation Allopatric speciation Genotype Phenotype Prezygotic Postzygotic Gamete Zygotes Genetic divergence Polyploidy Haploid Diploid gene pools biological species concept reproductively isolated reproductive isolating mechanisms After attending the lecture and doing the assigned reading you should be able to: 1. Explain the biological species concept. 2. Explain the problems that can occur in applying the biological species concept. 3. Differentiate between prezygotic and postzygotic isolating mechanisms. 4. Be able to explain and distinguish between the following pre-zygotic isolating mechanisms: habitat isolation, behavioral isolation, temporal isolation, mechanical isolation, and
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Unformatted text preview: prevention of gamete fusion. 5. Explain the three types of postzygotic isolating mechanisms. 6. Explain how reproductive isolation may evolve as a by-product of evolutionary change. 7. Explain the connection between natural selection and speciation as well as adaptation and speciation. 8. Explain how allopatric speciation occurs. 9. Explain how geographical isolation influences allopatric speciation. 10. Explain how sympatric speciation occurs and why it is less likely to occur. 11. Explain the role of polyploidy in species formation. 12. Explain why biological diversity might rebound after mass extinction. 13. Explain the difference between punctuated equilibria and gradualism in relation to evolutionary change. 14. Describe how the influences of humans can affect the future of evolution. 1...
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