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Worksheet 10 Due: NAME:__________________________________________________________ Biology BI102 Worksheets MUST be hand written and will not be accepted as a typed document.
1. What is an adaptive trait? Give two examples. 2. What is coevolution? When does it occur? 3. What are the three most important characteristics of evolutionary adaptations? Explain each. 4. Give an example of rapid evolution. 5. Do adaptations create perfect organisms? Explain. Page 1 of 4 6. Explain how the following can limit adaptations: 7. Explain the morphological species concept. What are its pros and cons? 8. What is reproductive isolation? What are the two types of reproductive isolation? 9. Explain the two types of postzygotic barriers: Lack of genetic variation: Varied effect of developmental genes: Ecological trade‐offs: Zygote death: Hybrid performance: Page 2 of 4 10. Explain the four types of prezygotic barriers: 11. What is the biological species concept? Why is this better than the two other purposed ways to determine species? 12. In what three ways does the biological species concept fail? 13. What is speciation and what has it caused? What is the main thing that must happen for speciation to occur? 14. Explain how the fruit fly experiment on pages 435‐436 demonstrates the initial steps of speciation. Ecological isolation: Behavioral isolation: Mechanical isolation: Gametic isolation: Page 3 of 4 15. How does geological isolation contribute to speciation? Give an example. 16. What is the difference between allopatric and sympatric speciation? 17. Explain why speciation requires gene flow to stop. 1pt Extra Credit ***Understanding of ALL of the underlined terms in this document is needed to succeed in this class. To further study these terms do one of the following: Draw pictures with the terms Make flash cards of all terms Make a concept map of all terms (if you don’t know what this is look it up on Wikipedia) Write out definitions of all terms Or come up with your own way of studying these terms. Just make sure to ok it with me to make sure you’ll get your extra credit. You will get one point of extra credit for this part of the worksheet. This must be turned in attached to this study guide at the time the study guide is due!!!! What’s working well and what’s a suggestion to help things work better? Page 4 of 4