EcolEEB100F11BKey

EcolEEB100F11BKey - EEB 100 Fall 11 Name & ID_KEY_...

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EEB 100 Fall 11 KEY ___________________ Version B Don’t open your exam until instructed to. Write your name and student number on every page of the test before handing in the test (you will lose 10 points if you don’t!). Answer questions in space provided below each question. Do not write on the back. Only answers on the front side of pages will be graded. NO EXCEPTIONS. If you must cross something out and run out of room to answer the question in the space provided, you must request another blank exam page. Turn off all electronic devices and put them away. They are not to be out on desks or in pockets. If you need to use the restroom, turn in your exam to a TA. Only one student may leave the room at a time. You may not leave the room with any electronic devices. Turn in your notes page with your exam. Good luck! I hereby certify that I have neither given nor received any aid on this exam, and that I have read and understand the instructions above. Sign your name here:_____________________________________
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EEB 100 Fall 11 KEY ___________________ PUT YOUR NAME ON EVERY PAGE OF THE EXAM BEFORE STARTING. Exam is 201 pts total Multiple Choice. 4 pts each. 1. Which of the following does not contribute to either natural or anthropogenic climate warming, either now or in the past? a. Ash and sulfur dioxide emission from volcanoes b. The ice albedo effect c. Solar activity d. The Milankovitch cycle e. Anthropogenic CO 2 output 2. Which of the following does NOT contribute to the rainy climate patterns that help support deciduous forests in the Southeastern US? a. The Gulf of Mexico is immediately to the south b. Global circulation cells cause warm moist air to sink at that latitude c. It is too far from the Rockies to be in its rain shadow d. It is coastal 3. If natural CO2 inputs to the atmosphere are greater than anthropogenic inputs, why are anthropogenic inputs considered to be the major driver of recent climate change? a. Human inputs are not balanced by natural uptake, therefore they are a net increase b. Human generated CO2 has different chemical properties than natural CO2 c. Natural CO2 inputs never vary d. All of the above e. None of the above 4. In Lubchenco’s experiment on snail grazing in tidepools, the lowest algal cover occurred at a. High snail density b. Low snail density c. Intermediate snail density d. High and low snail density e. The algal cover did not change 5. Which of the following is NOT true? a. The facilitative model of succession is most common after a primary disturbance b. All three successional models assume that the climax species is the competitive dominant c. Under the inhibition model, the climax species cannot establish until earlier successional species are displaced d. In primary succession, there may be species left that survived the disturbance event.
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EEB 100 Fall 11 KEY ___________________ 6. According to the Predator Prey Model shown below, if Curve X on the graph on the left
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EcolEEB100F11BKey - EEB 100 Fall 11 Name & ID_KEY_...

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