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https://coursework.stanford.edu/portal/tool/1c2f43e9-1653-4e97-98f7-93a4fbb2cb09/jsf/delivery/beginTakingAssessment Question 7 of 10 4.0 Points Which of the following is true? A. The population growth rate r can take on positive, negative, or zero values. B. For any real population, the low-density population growth rate r 0 must be positive C. Both A and B D. Neither A nor B Reset Selection Mark for Review What's This? Question 8 of 10 4.0 Points Given a constant population growth rate, the population size at any future time can be calculated by N t =N o e rt , where N is population size at time zero and time t, e is the base of natural logs, t is time, and r is the population growth rate. Given N o = 100 and r = 1.5, what will the population size be after 3 units of time? A. ~450 individuals B. ~900 individuals C. ~9000 individuals D. Cannot determine from the information provided Reset Selection Mark for Review What's This? Question 9 of 10 4.0 Points The so-called carrying capacity K in the equation dN/dt=r o ((K-N)/K) is defined as: Pick ONE: A. The maximum size that the population can achieve under any circumstances. B. The maximum population that can be sustained without destroying the environment it occupies C. The population size which allows the maximum sustainable yield of individuals to be harvested from the population D. None of the above Reset Selection Mark for Review What's This? Question 10 of 10 4.0 Points The rate of population growth is zero when: A. R (from life tables) is zero B. r is zero C. Neither A nor B

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4/25/13 3:25 PM 2013 Problem Set 4 Evo Lecture 9 and Eco Lectures 10-12 Page 5 of 5 https://coursework.stanford.edu/portal/tool/1c2f43e9-1653-4e97-98f7-93a4fbb2cb09/jsf/delivery/beginTakingAssessment D. Both A and B Reset Selection Mark for Review What's This? Save Exit Assignment Preview - This is an example student view of this assignment done
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