W10 Exam #1 Key

# W10 Exam #1 Key - EEB 100 Winter 2010 Name:_ Student ID #:_...

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EEB 100 – Winter 2010 Name:_________________________ Student ID #:______________________________ - 2 – There are X total pages in this Exam. Multiple choice/True-False/Matching (6 points per question) 1. If the number of local populations increases from 2 to 4, what would be the expected change in probability of regional persistence? Assume all populations have an equal extinction rate of p e = 0.4 . In the choices below, a negative sign indicates that the probability of regional persistence decreases. A positive sign indicates that the probability of regional persistence increases. A. -13% B. + 13% C. +20% D. -37% E. no change in probability of regional persistence 2. To observe the relationship between nutrients and plant growth, the heights of plants were recorded along a gradient of increasing nitrogen. The height of each plant was recorded in centimeters. Nitrogen loading was measured in parts per million (ppm). What statistical analysis should be used? A. Linear regression B. ANOVA C. Logistic regression D. Chi-squared E. No statistical approach is necessary 3. Which statement about Gause’s experiments with Paramecium and Didinum is (are) true? A.
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## This note was uploaded on 12/06/2011 for the course EEB 100 taught by Professor Halpin during the Fall '08 term at UCLA.

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W10 Exam #1 Key - EEB 100 Winter 2010 Name:_ Student ID #:_...

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