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Populations of a certain yeast strain grow according to a simple form of logistic growth in which r declines linearly with population density.Suppose that the rate of increase is 0.04 per day when density is very low and the rate of increase is 0.02 per day when the density is 15,000 per cubic centimeter.
-What is the rate of growth at the carrying capacity?
A) -0.04
B) 0
C) 0.02
D) 0.04
E) It cannot be determined.

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Quizplus · Accepted Answer

At carrying capacity, the population growth rate is zero because the population size has reached the maximum that the environment can sustain.

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