CAMPBELL BIOLOGY IN FOCUS-TEXT,AP ED.
3rd Edition
ISBN: 9780136811206
Author: Urry
Publisher: SAVVAS L
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Chapter 40.5, Problem 2CC
Explain why a population that fits the
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When does the growth rate of a population following the logistic model equal zero?the logistic model is given as dN/dt = rN (1-N/K)
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Write a formula that extends the preceding model to incorporate carrying capacity,
producing sigmoidal population growth. Define your terms. Then, draw a plot showing
an example, being sure to label your axes.
Show how you build the logistic model for population growth from the exponential model equation? What part of the logistic growth equation produces the sigmoidal growth curve?
Chapter 40 Solutions
CAMPBELL BIOLOGY IN FOCUS-TEXT,AP ED.
Ch. 40.1 - Explain how the suns unequal heating of Earths...Ch. 40.1 - Prob. 2CCCh. 40.1 - WHAT IF? If global warming increases average...Ch. 40.2 - Why are phytoplankton and not benthic algae or...Ch. 40.2 - Prob. 2CCCh. 40.2 - MAKE CONNECTIONS The addition of nutrients to a...Ch. 40.3 - Give examples of human actions that could expand a...Ch. 40.3 - WHAT IF? You suspect that deer are restricting the...Ch. 40.4 - DRAW IT Each female of a particular fish species...Ch. 40.4 - Imagine that you are constructing a life table for...
Ch. 40.4 - Prob. 3CCCh. 40.5 - Explain why a constant per capita rate of growth...Ch. 40.5 - Explain why a population that fits the logistic...Ch. 40.5 - Prob. 3CCCh. 40.6 - Prob. 1CCCh. 40.6 - WHAT IF? Mice that experience stress such as a...Ch. 40.6 - Prob. 3CCCh. 40 - Which of the following biomes is correctly paired...Ch. 40 - A populations carrying capacity A. may change as...Ch. 40 - When climbing a mountain, we can observe...Ch. 40 - According to the logistic growth equation...Ch. 40 - WHAT IF? If the direction of Earths rotation...Ch. 40 - INTERPRET THE DATA After examining Figure 40.13,...Ch. 40 - SCIENTIFIC INQUIRY Jens Clausen and colleagues, at...Ch. 40 - Prob. 8TYUCh. 40 - FOCUS ON INTERACTIONS In a short essay (100-150...Ch. 40 - Prob. 10TYU
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- Draw a graph with a growth curve for a population that starts at 10 individuals and experiences exponential growth. Draw a second graph with a growth curve for a population that starts with 10 individuals and undergoes logistic growth. The second graph should have a carrying capacity of 100 individuals. Please give a proper written explanation for the graphs.arrow_forwardWrite a generalized model for exponential population growth. Define your terms. Then, draw a plot showing an example, being sure to label your axes.arrow_forwardDifferentiate between exponential and logistic growth form of population.arrow_forward
- explain why a population that fits the logistic growthmodel increases more rapidly at intermediate size thanat relatively small and large sizesarrow_forwardBoth density-dependent and density-independent factors can influence population growth. Distinguish between density-dependent and density-independent factors, and describe an example of eacharrow_forwardExplain how to estimate the per capita rate of increase in a population. How would you estimate intrinsic rate of increase?arrow_forward
- Give two examples of density-dependent and two examples of density-independent factors that can limit the growth of a population.arrow_forwardExpress the logistic population growth by equation.arrow_forwardThe per capita birth (b) and death (d) rates are measured for two populations across a range of population sizes in the attached figure. The equation for exponential growth rate is dN/dt=rN where the per capita growth rate is r=(b-d). The equation for logistic population growth rate is dN/dt=rN(1-N/K). With logistic growth, r varies as a function of the population size with density-dependent birth and/or death rates. See attached image If the death rate decreased, what would happen to the population trajectory for population A? a) increase faster b) increase slower c) decrease faster d) decrease slowerarrow_forward
- Describe the growth at the various parts of the S-shaped curve of logistic growth.arrow_forwardExplain the differences between equations for exponential population growth, logistic population growth, and Lotka-Volterra models for competition. Illustrate how and explain why these equations yield different trends?arrow_forwardA population that did not grow in close relation to the amount of resources available in the environment, and dramatically overshot the carrying capacity, would experience: A. logistic growth, such as shown on the S-shaped curve B. exponential growth, such as shown on the J-shaped curve C. unpredictable growth, such as shown on the ?-shaped curve D. exponential growth, such as shown on the S-shaped curve E.logistic growth, such as shown on the J-shaped curvearrow_forward
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