110%20Final%20F10%20Tan%20Key

110%20Final%20F10%20Tan%20Key - Final Exam Biology 110 Fall...

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Final Exam Biology 110 – Fall 2010 Dr. David H. Bos INSTRUCTIONS: The use of calculators, cell phones or other electronic devices is not allowed during the exam. There are 67 questions on this exam. There is only one correct answer for each question. Read each question carefully and choose the best answer. Do not fill in multiple answers, as they will be marked incorrect. Turn in only the answer sheet when you are done. You may keep the exam. Take your time, think and good luck! 1. What is the function of nutrient reservoirs in ecosystems? a. Make nutrients available for incorporation into biological systems b. Transfer energy between trophic levels c. Convert liquids to gasses d. Convert N 2 gas to ammonia through the Haber process e. Detoxify and decompose waste material 2. What is the main reservoir for oxygen? a. The gaseous oxygen in the atmosphere (O 2 ) b. The oxygen in water (H 2 O) c. The oxygen in earth’s crust—the sediment d. The oxygen that is found in the biological organisms on the earth e. The oxygen emitted from volcanic activity 3. In the Hubbard brook experimental station experiment, which of the following nutrients was actually retained in excess in the experimental watershed with the trees removed? a. Nitrogen b. Calcium c. Sulfur d. Potassium e. All of the above 4. Which of the following elements are primarily cycled through the action of photosynthesis and cellular respiration? a. Carbon b. Oxygen c. Hydrogen d. All of the above e. None of the above 5. Biotic potential is influenced by all of the following, except: a. The ratio of the numbers of females to males b. The ages of the members of the population c. The average time span between birth and the first reproductive event d. The supply of food available to the population e. None of the above—biotic potential is the same for all populations and cannot be changed 6. Which of the following will increase the biotic potential of a population? a. Increasing the number of females relative to males b. Increasing the food supply c. Lengthening the generation time d. Increasing the average age of the population e. None of the above—biotic potential is the same for all populations and cannot be changed 7. In the formula for logistic growth, what does “r” stand for? a. The size of the population b. The carrying capacity c. The food supply d. The biotic potential 1
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e. Ecosystem limitations on the growth rate 8. Which population will be growing, but growing slowly? a. A population where N is much smaller than K b. A population where N = K c. A population where N is smaller than but close to K d. A population where N is larger than K e. A population that is growing exponentially 9. How are artificial and natural selection different? a.
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110%20Final%20F10%20Tan%20Key - Final Exam Biology 110 Fall...

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