Download Study Guide Extra Credit Ch 14

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BSU Ch 14 Study Guide EXTRA CREDIT STUDY GUIDE
Note: Know Darwin’s 7 Evolution Rules
1. Based on natural selection, why are the finch’s beak size and shape
different?(
2. When the finches choose a mate, what is their selection process regarding
beak size)?
3. Why would having different beak shapes shown be beneficial to all finches?
4. The finch picture to the right shows what (vocab word)?
5. Based on the picture of bullfrogs mating cycles graph shown below, which two species would be most likely to
mate?
6.
What is the difference between the three types of reproduction: reproductive isolation, temporal isolation and
geographic isolation?
7. Sketch and label what disruptive selection, directional selection and stabilizing selection.
8. How are disruptive and directional selection similar?
9. Which type of selection from question 7 leads to speciation? What
else could lead to speciation?
10. Describe the habitat of Isabella, Hood and Pinta Island. What is the neck like of each tortoise there?
11. What can fossils show you and what can they not show you regarding an ancient organism? (Think of dinosaurs)
12. What three sources of evidence lead to Darwin’s theory of evolution?
1.
2.
13. Explain how a hybrid can or cannot be considered a species.
14. What is the most important cause of speciation from one existing population?
15. Why does artificial selection decrease genetic equilibrium (bell curve)?
3.
16. Why is genetic variation so important? (Similar to biodiversity-but this means within the same species).
17. In the dot lab, what would determine if a mutated pink dot (now pale pink instead of hot pink) would live or die?
18. What would cause stabilizing fitness?
19. What are polygenic traits?
20. What two ideas were the foundation of Darwin’s theory of evolution?
21. Define natural selection.
22. Define Gene Pool.
23. What is the least number of alleles (genes) that there can be for a trait?
24. If there is constant inbreeding among a species (pure breed, white, toy poodles), how will it affect the frequencies
of alleles in the dog’s gene pool?
25. In a gene pool, what is the total of all frequencies always have to equal to?
5% 15%
60%
26. What are the two main reasons for genetic variation?
27. What scientific information did Darwin not possess that biologist use today?
28. What part of Lyell and Hutton’s work did Darwin use to create his theory?
29. What part of Lamarck’s work did Darwin use to create his theory?
30. What part of Malthus’s work did Darwin use to create his theory?
31. What was the title of Darwin’s book on evolution?
32. Why would a farmer want natural variations within a species, rather than continually inbreeding?
33. Is it possible to have adaptations that are physical and behavioral?
34. Give an example of survival of the fittest.
35. What are vestigial organs? Give an example.
36. How does natural selection change the inherited characteristics of a population?
20%