Read each question carefully and answer each.
1. Most doctors would prescribe antibiotics to be taken for a couple of days. Patients would be required to take in the medicine completely according to the prescribed number of days.
Doctors say that the medicine will be ineffective the second time you use it for the same illness if you don't complete the prescribed number of days, why is this so? Explain in evolutionary terms.
2. How would you explain the different finch species found in the Galapagos Islands?
3. Which pattern of macroevolution would explain the disappearance of dinosaurs at the end of the Mesozoic era?
4. Natural selection affects polygenic traits in three different ways. In which way will natural selection produce two different phenotypes (observable/outward characteristics)? Why?
5. Why do scientists study populations instead of individual species when talking about evolution?
6. What does "survival of the fittest" mean? Does it always refer to physical traits? Explain.
7. Which pattern of macroevolution would best explain the similat appendages found in sharks, dolphins, and penguins? Explain.
8. The Law of Superposition states that, "in an undeformed sequence of sedimentary rock, the lower layer is older than the one on top of it." Why does it have to be an undeformed sequence of sedimentary rock?
9. How can two species that look very different from each other be more closely related than two other species that look similar to each other?
10. Describe one way that the lack of genetic variation could affect the survival of a species.
Submit your answers on or before Dec. 30, 2007 (Sunday) to sanmig_glenn@yahoo.com Answers to the questions in this set will be posted in the afternoon of Dec. 30, 2007.
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