GE Midterm 07

GE Midterm 07 - GE 70B MIDTERM EXAM February 13, 2007 Name...

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GE 70B MIDTERM EXAM February 13, 2007 Name _________________________________________________________________ Student ID number: ______________________________________________________ This is a two-part exam, with a total of 90 points. Use the scantron provided to you to answer Part I. Write your answers to Parts II and III on these exam pages. Please write and bubble in your name and student ID on the scantron. Part I: Multiple Choice (1 point each, 40 total) . Provide the single best answer to each of the following questions or statements. There is no penalty for guessing, so if you can eliminate an answer or two, then you might as well make an educated guess. For any questions where you think that more than one answer is correct choose the best one. Read each word of every question and choice carefully. 1. Charles Darwin a. provided a view of evolution that has not changed in the more than a century since the publication of “Origin of Species.” b. was influenced by the work of Gregor Mendel in developing his scenario of evolution by natural selection. c. was influenced by the work of the geologist Charles Lyell and the economist Thomas Malthus in developing his scenario of evolution by natural selection. d. was the first person to originate the idea of evolution. e. was the only person to originate the idea of evolution by natural selection. 2. An example of a vestigial feature in human beings is _______________. a. the eye b. wisdom teeth c. the arm d. the head e. designer jeans 3. The effects of genetic drift are strongest in what sort of population? a. any large population b. any small population c. isolated large population d. isolated small population e. none of the above 4. What does a relatively high ratio of 12 C: 13 C indicate about an accumulation of carbon in sediments? a. this carbon was a part of CO 2 that relatively recently went through the process of photosynthesis b. this carbon came from the body of a predator c. this carbon came from the body of a herbivore d. this carbon was relatively recently emitted as a part of CO 2 from a volcanic eruption e. this carbon was emitted as a part of CO 2 from a volcanic eruption that occurred billions of years ago
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5. The bones in the front flipper of a dolphin are homologous to the bones in: a. the wing of a butterfly b. the front fin of a trout c. your arm d. your leg e. a chicken leg 6. A gene is a specific section of __________. a. DNA b. a ribosome c. an amino acid d. a protein e. a codon 7. You go to a set of islands and notice that the animals and plants seem related to some species on the nearby mainland, but are distinctly different. Why is this the case? a. this is where a giant boat dropped them off b. the islands were colonized by species from the mainland, but then they diverged in form c. organisms all evolved where they are found today, so this is just an example of convergence d. the small populations on the islands caused more mutations in the organisms there
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GE Midterm 07 - GE 70B MIDTERM EXAM February 13, 2007 Name...

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