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 main reservoir for oxygen? a. The gaseous oxygen in the atmosphere (O 2 ) b. The oxygen in earth’s crust—the sediment c. The oxygen that is found in the biological organisms on the earth d. The oxygen emitted from volcanic activity e. The oxygen in water (H 2 O) 2. Which of the following elements are primarily cycled through the action of photosynthesis and cellular respiration? a. Carbon b. Hydrogen c. Oxygen d. All of the above e. None of the above 3. Which of the following will increase the biotic potential of a population? a. Increasing the food supply b. Lengthening the generation time c. Increasing the number of females relative to males 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 4. What is the function of nutrient reservoirs in ecosystems? a. Transfer energy between trophic levels b. Convert liquids to gasses c. Convert N 2 gas to ammonia through the Haber process d. Make nutrients available for incorporation into biological systems e. Detoxify and decompose waste material 5. 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. Sulfur b. Nitrogen c. Calcium d. Potassium e. All of the above 6. Biotic potential is influenced by all of the following, except: a. The ratio of the numbers of females to males b. The supply of food available to the population c. The ages of the members of the population d. The average time span between birth and the first reproductive event 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 biotic potential b. The size of the population c. The carrying capacity d. The food supply 1
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e. Ecosystem limitations on the growth rate 8. How are artificial and natural selection different? a. Small stepwise changes b. Reliance on reproductive differences c. Substantial changes as a result d. A specific purpose to the change e. All of the above 9. In which of the following is evolution by natural selection impossible? a.
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110%20Final%20F10%20Tan%20Key - Final Exam Biology 110 Fall...

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