Campbell Biology in Focus (2nd Edition)
Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780321962751
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
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Chapter 40, Problem 4TYU

According to the logistic growth equation

     d N d t = r N ( K N ) K

  1. A.    the number of individuals added per unit time is greatest when N is close to zero.
  2. B.     the per capita growth rate increases as N approaches K.
  3. C.     population growth is zero when N equals K.
  4. D.    the population grows exponentially when K is small.
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As a population size approaches (i.e. is almost equal to) carrying capacity for a certain population, which of the following outcomes is predicted by the logistic growth equation? a. The population growth rate will not change   b. The population growth rate will approach zero   c. The population size will increase exponentially   d. The carrying capacity of the environment will increase
The population of individuals is growing at a continuous rate. The maximum growth rate is 0.35 and the carrying capacity of the population is 800 individuals. a. If the population size is 20 individuals, find the population growth rate. Show your work.  b.  If the population was nearing the carrying capacity, how would this rate compare to the calculated rate in part a? A  calculation is not required.
A population that grew in close relation to the amount of resources available in the environment, would experience  A. exponential growth, such as shown on the J-shaped curve B. logistic growth, such as shown on the S-shaped curve C. unpredictable growth, such as shown on the ?-shaped curve D.logistic growth, such as shown on the J-shaped curve E. exponential growth, such as shown on the S-shaped curve
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