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Chapter 36 - Chapter 36 1 Assume that there are five...

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Chapter 36 1. Assume that there are five alligators per acre in a swamp in northern Florida. This is a measure of the alligator population's a. range. b. dispersion. c. intrinsic rate of increase. d. density.
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2. You drive through Iowa in the spring and notice that every fence post for 3 km has a male redwing blackbird on it defending its nesting territory. This is an example of 3. The density of Douglas firs in an old-growth forest is estimated by counting the Douglas firs in four sample plots of one hectare each. The number of fir trees in the plots is 10, 12, 7, and 11, respectively. What is the estimated density of firs in the forest? 4. The maximum number of individuals a habitat can support is called the 5. A population of fungi in a yard produces 10 mushrooms in year 1, 20 in year 2, and 40 in year 3. If this trend continues, by year 5 there will be __________ mushrooms. a. 40 b. 160 c. 80 d. 20 6. Which of the following is most clearly a case of density-dependent population regulation?
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