Sample%20Exam%204%20key

Sample%20Exam%204%20key - SAMPLE NON-COMPREHENSIVE FINAL...

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SAMPLE NON-COMPREHENSIVE FINAL QUESTIONS, ZOO 101 Spring 2008 Keep the following in mind in using this exam. These are exam questions are compiled from previous semesters when Dr. Thoma taught evolution and ecology in Zoology 101. She did not cover all of the same topics as she is covering this semester and those that she did cover were not covered in the same order nor necessarily covered with the exact same focus or depth. Therefore, realize that not all topics covered this semester are represented on this exam nor are those here represented in ratio indicative of how they were covered this semester. This sample exam is provided to give you an idea of the TYPES of questions Dr. Thoma has asked on this material. Expect 4-5 questions per lecture on the exam. Some questions may combine material from more than one lecture. There will also be 1-2 questions based on the article The Fish and the Forest. . An answer key will be provided as a separate document. This exam is ONE TOOL for studying, do NOT use it as your sole means of study. It is not meant to take the place of attending lectures and discussions. ------------------------------------------------------------------------------------- 1. During drought years on the Galapagos, small, easily eaten seeds become rare; large, hard-cased seeds that only birds with large beaks can eat are left. If a drought persists for several years, then what should one expect to result from natural selection? a. Small birds gaining larger beaks through exercise of their mouth parts b. Small birds mutating their beak genes so their offspring can have larger beaks c. Small birds anticipating the long drought and eating more to gain weight and grow larger beaks d. More small-beaked birds dying than the larger-beaked birds. Over time, the population will have a higher percentage of birds with large beaks e. Larger birds will sacrifice – they will eat less so the small birds can eat more 2. Natural selection is sometimes described as “survival of the fittest.” Which of the following most accurately measures an organism’s fitness? a. How strong it is when engaged in intraspecific competition b. How often mutations occur c. How many viable, fertile offspring it produces d. Its ability to withstand environmental extremes e. How much food it is able to make or obtain
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3. The structure of the ear needed to hear sound traveling underwater is very different from the structure needed to hear sound on land. In the evolution of whales, the ear structure had to change drastically, eventually being able to pick up very low frequency sound waves. Which of the following statements about the evolution of the whale ear best ties in with the idea of geological uniformitarianism that was incorporated into Darwin’s theory of evolution? a.
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Sample%20Exam%204%20key - SAMPLE NON-COMPREHENSIVE FINAL...

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