BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Textbook Question
Chapter 54, Problem 5U
The difference between exponential and
a. exponential growth depends on birth and death rates and logistic does not.
b. in logistic growth, emigration and immigration are unimportant.
c. that both are affected by density, but logistic growth is slower.
d. that only logistic growth reflects density-dependent effects on births or deaths.
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Students have asked these similar questions
When an environment has reached its carying capacity for a certain population, which
of the following is true?
A. Growth and immigration rate is equal to death and emigration rate.
B. Growth and immigration rate is greater than death and emigration rate.
C. Growth and immigration rate is less than death and emigration rate.
D. Growth rate is exponential.
Answer
Why do you believe this is the correct
answer.
Nt= N0 t represents:a.geometric population growth.b.annual growth rate.c.exponential growth rate.d.logistic growth.e.none of the choices apply.
A 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 curve
Chapter 54 Solutions
BIOLOGY
Ch. 54.1 - Prob. 1LOCh. 54.1 - Prob. 2LOCh. 54.1 - Explain how species adapt to environmental...Ch. 54.2 - Prob. 1LOCh. 54.2 - Prob. 2LOCh. 54.3 - Prob. 1LOCh. 54.3 - Prob. 2LOCh. 54.3 - Prob. 3LOCh. 54.4 - Prob. 1LOCh. 54.4 - Prob. 2LO
Ch. 54.5 - Prob. 1LOCh. 54.5 - Discuss why populations cannot grow exponentially...Ch. 54.5 - Define carrying capacity and explain what might...Ch. 54.6 - Prob. 1LOCh. 54.6 - Prob. 2LOCh. 54.6 - Prob. 3LOCh. 54.7 - Prob. 1LOCh. 54.7 - Prob. 2LOCh. 54.7 - Prob. 3LOCh. 54 - Prob. 1DACh. 54 - Prob. 2DACh. 54 - Prob. 3DACh. 54 - Prob. 4DACh. 54 - Prob. 5DACh. 54 - Prob. 6DACh. 54 - Prob. 1IQCh. 54 - Prob. 2IQCh. 54 - Prob. 3IQCh. 54 - Prob. 4IQCh. 54 - Prob. 5IQCh. 54 - Prob. 6IQCh. 54 - Prob. 7IQCh. 54 - Prob. 8IQCh. 54 - Suppose experimenters artificially kept the hare...Ch. 54 - Prob. 10IQCh. 54 - Prob. 11IQCh. 54 - Prob. 12IQCh. 54 - Source-sink metapopulations are distinct from...Ch. 54 - The potential for social interactions among...Ch. 54 - When ecologists talk about the cost of...Ch. 54 - Prob. 4UCh. 54 - The difference between exponential and logistic...Ch. 54 - Prob. 6UCh. 54 - Which of the following is an example of a...Ch. 54 - If the size of a population is reduced due to a...Ch. 54 - In populations subjected to high levels of...Ch. 54 - In a population in which individuals are uniformly...Ch. 54 - Prob. 4ACh. 54 - Refer to figure 55.8. What are the implications...Ch. 54 - Prob. 2SCh. 54 - Refer to figure 55.14. Because the number of...Ch. 54 - Refer to figure 55.26. Would increasing the mean...
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- Use this graph of the idealized exponential and logistic growth curves to complete the following. a. Label the axes and curves on the graph.b. What does the dotted line represent? c. For each curve, indicate and explain where population growth is the most rapid. d. Which of these curves better represents global human population growth?arrow_forwardWhich of the following implies the greatest built-in momentum for population growth? a. a large number of people under age 34 b. a large number of people age 29–44 c. a large number of people over the age of 45 d. a large number of people under age 15 e. a large population sizearrow_forwardAs 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 increasearrow_forward
- Which of the following statements about exponential growth is FALSE? O a. Increases in the size of the population do not affect per capita rate of increase (r). Ca. b. Exponential growth adds a constant number of individuals per unit time to a population as N gets larger. C. In reality, it is not possible for exponential population growth to continue indefinitely. d. In an exponentially growing population, the % increase of the population per unit * time doesn't depend on the number of individuals (N) in the population.arrow_forwarda) The region numbered 3 on the graph represents the __A__ brought on by the limiting factors called __B___. Select one: a. A B Carrying capacity Environmental resistance b. A B Environmental resistance Exponential growth c. A B Exponential growth Lag phase d. A B Lag phase Carrying capacity b) The region of the graph that illustrates the exponential growth of a population and the type of graph illustrated are, respectively: Select one: a. Exponential Growth Type of Graph 4 S-shaped b. Exponential Growth Type of Graph 2 Logistic c. Exponential Growth Type of Graph 3 J-Shaped d. Exponential Growth Type of Graph 1 Exponential c) What do the regions numbered 2 and 4 on the graph represent? Select one: a. Region #2 Region #4 Immigration and birth rate is less than emigration and death rate. Emigration and death rate is less than immigration and birth rate. b. Region #2…arrow_forwarddN/dt= rmaxN [(K – N)/K] represents:a.annual growth rate.b.geometric population growth.c.exponential growth rate.d.logistic growth.e.none of the choices apply.arrow_forward
- Which of the following accurately describes a trophic cascade? a. Sunflower stars, as a primary predator within Northern California bull kelp forests, have an indirect positive impact on the sea urchin's main prey, the bull kelp. b. Sunflower stars, as a primary predator within Northern California bull kelp forests, have an direct positive impact on the sea urchin's main prey, the bull kelp. c. Sunflower stars prey directly on kelp and keep kelp populations in check. d. The presence of Pisaster sea stars benefits Mytilus mussels, a primary producer.arrow_forwarddN/dt= rmaxN represents:a.annual growth rate.b.geometric population growth.c.exponential population growth.d.logistic growth.e.none of the choices apply.arrow_forwardThe logistic population growth model, dN/dt = rN[(K – N)/K], describes a population’s growth when an upper limit to growth is assumed. As N approaches (numerically) the value of K a. dN/dt increases rapidly. b. dN/dt approaches 0. c. dN/dt increases slowly. d. the population becomes threatened by extinction.arrow_forward
- The moose population in Jasper is currently on the decline in Jasper National Park. Some of the reasons for the population decline are liver fluke parasitic disease, return of the wolves in the area, and increased traffic in the highways. Match the cause of moose population decline to the type of limiting factor using the drop down menu. Choose between density dependent and density independant. Cause of Population Decline Limiting Factor a. Liver fluke Answer b. Increase in wolf population Answer c. Increase in highway traffic Answerarrow_forwardHuman beings, like other K-selected species live close to carrying capacity and usually have logistic growth rates. However, population growth for humans has exhibited exponential growth for over the last 350 years (since the Industrial Revolution). Which of the following can explain this phenomenon? Select one: a. Humans have been able to achieve their biotic potential. b. Humans have increased environmental resistance by limiting density-dependent factors c. Humans have been able to continually increase their carrying capacity. d. Humans have decreased environmental resistance by increasing density-independent limiting factors.arrow_forwardHow does the logistic growth model of population growth differ from the exponential growth model? A. The graph of the exponential model is S-shaped. B. The logistic growth model shows an unrestricted growth rate. C. The logistic growth model considers the environment's carrying capacity. D. The exponential growth model shows a restricted growth rate.arrow_forward
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