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Unformatted text preview: Name: Page 1 of 8 Instructions: --Write your name on all the pages --Make sure that all pages are attached. --Any math needed to solve a problem should be relatively simple. If not, please give your answer by showing how you would make the calculation: e.g., showing &quot;(10+10)/4&quot; is as good an answer as &quot;5&quot; (writing down an appropriate equation and clearly defining the variables, as well as indicating their values, if known, will also suffice). ECOLOGY PCB 4044 / 3063 SPRING 2008 EXAM 3 PAGE POINTS POSSIBLE SCORE 2 16 _____ 3 18 _____ 4 16 _____ 5 16 _____ 6 17 _____ 7 17 _____ 8 Extra space _____ _____ _________ TOTAL 100 _____ Name: Page 2 of 8 2-1. ( 10 points ) Consider the following food-chain: bass shiners zooplankton phytoplankton You bought an undeveloped lake (it had very clear water) 10 years ago and built your dream house on its shores. Recently, the lake water has turned green due to high concentrations of algae (phytoplankton). List two hypotheses (involving different aspects of the ecosystem) that can explain this increase in phytoplankton since you built your dream house. Provide a brief explanation (1-2 sentences) of the logic underlying each hypothesis....
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- Spring '10