171Practice+exam+3

171Practice+exam+3 - Biology 171 Spring 2009 Practice Exam...

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Biology 171 Student Name ______________________________ Spring 2009 Signature _________________________________ Practice Exam 3 Student ID ________________________________ GSI/Section _______________________________ PLEASE READ THESE IMPORTANT INSTRUCTIONS: This is FORM 1 1. Please provide the information requested at the top of this page, then initial the remaining pages of the exam . As you do so, please verify that your booklet has 17 total pages. 2. On the left side of the Scantron answer sheet, bubble in your NAME, three-digit LAB SECTION NUMBER, and eight digit STUDENT ID NUMBER. Enter the number shown above in the FORM column. On the right side of the Scantron, write your signature, the course number, and the date. Under the heading "Other", enter your GSI's NAME. 3. Answer all 30 multiple-choice questions in SECTION A. In each case, choose the one best, most complete answer. The multiple-choice questions are worth 2 points each. Use a No. 2 pencil to mark your answers on the Scantron answer sheet. Do not make marks on the answer sheet outside of the designated areas. Do not fold the answer sheet. 4. Answer 4 of the 5 short answer questions in SECTION B and cross out the surplus question . These are worth 10 points each. If all 5 short answer questions are answered, the first 4 ONLY will be assessed. The exam has 100 total points. 5. Only multiple choice answers entered on the ANSWER SHEET will be graded. Questions with more than one answer marked will be scored as incorrect. There is no penalty for guessing. In the rare instances where you feel a question is ambiguous, you may write an explanatory sentence in the margin of the exam (not on the answer sheet) next to the question to justify the answer you select. You may change an answer on the answer sheet by completely erasing the incorrect answer. Do not cross out an incorrect answer; the scoring machine will count it as marked. 6. At the end of the exam, turn in BOTH the ANSWER SHEET and ALL PAGES OF THE EXAM BOOKLET to YOUR GSI. 7. Good Luck!
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SECTION A: MULTIPLE CHOICE QUESTIONS (answer all 30) 1. Phylogenetic trees can be constructed using which of the following types of information? a) homologous morphological characters. b) homologous gene sequences. c) plesiomorphies. d) a and b. e) a, b and c 2. One reason why so few rocks dating to the earliest periods in earth’s history have been discovered is that a) radioactive decay destroys most rocks in only a few million years. b) asteroid impacts repeatedly melted earth’s surface during the Proterozoic. c) the movement of crustal plates recycles most surface rocks. d) glaciers scrape away surface rocks and move them to the ocean. e) all of the above. 3. The fossil record of the earliest life forms on earth is very limited and incomplete.
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This note was uploaded on 01/12/2011 for the course BIO 171 taught by Professor Josephinekurdziel during the Spring '08 term at University of Michigan.

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171Practice+exam+3 - Biology 171 Spring 2009 Practice Exam...

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