Chapter 7_Life History.docx - Chapter 7 Study Questions 1...

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Chapter 7 Study Questions 1. What is an organism’s life history? What components of an organism’s life define its life history? Which three major events must an organism divide its energy and time between? 2. Organisms have different life history strategies. What determines which is best for each organism, and where do these differences come from? 3. What is the most important part of an organism’s life history strategy that it wants to maximize? Are these strategies ever perfect? Why? 4. What determines the phenotype of a trait that shows plasticity? How is this advantageous to an organism as related to its life history strategy? 5. What is polyphenism? Is this an example of phenotypic plasticity? What about allometry? 6. What types of organisms tend to reproduce asexually? What types of organisms tend to reproduce sexually? Are there organisms that use both strategies? 7. Explain isogamy versus anisogamy. 8. What are the advantages and disadvantages of sexual reproduction? Compared to asexual reproduction, is the growth rate of a sexually reproducing population larger or smaller?
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