Exam 1 - Exam 1 Exam 1 EBIO 1220, General Biology...

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Unformatted text preview: Exam 1 Exam 1 EBIO 1220, General Biology Professors Rebecca Safran and Kendi Davies Section 003 (TR 9:30) and 004 (TR 12:30) INSTRUCTIONS: 1) READ THE INSTRUCTIONS 2) ANSWER SHEET : BE SURE to fill in your name, correct ID number (not social security number) and section number 3) EXAM : Read each question carefully and then select the best answer to the question. Please use a #2 pencil. There are 50 questions. Be sure you have answered every question. 4) HANDING IN THE EXAM : You must return your exam with your answer sheet. There is a numbered sheet on the last page that you can use to list your answers and then check your answers with the answer key, which will be posted on CULearn soon after the exam. GOOD LUCK! CU Honor Code Pledge: On my honor as a University of Colorado at Boulder student I have neither given nor received unauthorized assistance on this work. Signature: Exam 1 Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. 1. After (unwisely) attempting to swim the entire length of the Amazon River, you find yourself lying in a hospital bed with a severely unpleasant invasion by a Candiru (vampire fish). Once the anesthesia kicks in, you begin to wonder about the evolutionary history of ray-finned fishes such as Candiru. Did they: a. evolve in the ocean then move into freshwater b. evolve in freshwater then move into marine environments c. evolve on land as tetrapods then return to freshwater d. evolve in stagnant swamps, facilitating the development of lungs e. none of the above 2. Evolution a. Is a theory b. Produces increasing complexity in traits over time c. Is explained only by natural selection d. Is defined as change over time in a populations genetic makeup e. A and C 3. Sulfobus, a hydrothermal-vent associated bacterium, uses sulfur for energy and CO 2 for carbon. How would you classify its metabolism? a. chemoheterotrophy b. chemoautotrophy c. photoautotrophy d. photoheterotrophy e. mixotrophy 4. The three domains of life include: a. Monera, Plantae, Animalia b. Animalia, Archaea, Bacteria c. Eukarya, Plantae, Bacteria d. Prokarya, Eukarya, Monera e. Monera, Bacteria, Archaea 5. How do western fence lizards (Sceloporus) and Borrelia interact? a. Sceloporus is the primary host for Borrelia b. Sceloporus preys upon ticks, the vector of Borrelia c. Sceloporus are suffering declines owing to Borrelia infections d. Human development has decreased the abundance of Sceloporus, leading to a concurrent decline in Borrelia infection of humans e. The blood of Sceloporus can cure ticks of Borrelia infection 1 Exam 1 6. One of your fellow systematists has asked you to help him group organisms into a valid phylogenetic tree. At present, he has grouped species E, I, J, K . Based on your examination of the tree, how would you categorize his grouping?...
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This note was uploaded on 04/30/2008 for the course EBIO 1220 taught by Professor Demig-addams during the Spring '07 term at Colorado.

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Exam 1 - Exam 1 Exam 1 EBIO 1220, General Biology...

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