Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Textbook Question
Chapter 52, Problem 4TYK
The model of exponential population growth predicts that the per capita
a. does not change as a population gets larger.
b. gets larger as a population gets larger.
c. gets smaller as a population gets larger.
d. is always at its maximum level (rmax).
e. fluctuates on a regular cycle.
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Growth rate of a population is determined by: A. The increase in the number of people per unit of time. B. The number of people being born minus the number of people dying. C. The number of children living per each two adults. D. The number of people times the number of children each one has per year.
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
dN/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.
Chapter 52 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 52.1 - Prob. 1SBCh. 52.1 - Prob. 2SBCh. 52.2 - Prob. 1SBCh. 52.2 - Prob. 2SBCh. 52.3 - To what two broad categories of activities do...Ch. 52.3 - Why do fecundity and the amount of parental care...Ch. 52.4 - How does the prediction of the exponential model...Ch. 52.4 - Prob. 2SBCh. 52.4 - Prob. 3SBCh. 52.5 - Prob. 1SB
Ch. 52.5 - Prob. 2SBCh. 52.6 - Prob. 1SBCh. 52.6 - Prob. 2SBCh. 52 - Prob. 1TYKCh. 52 - Prob. 2TYKCh. 52 - Prob. 3TYKCh. 52 - The model of exponential population growth...Ch. 52 - Prob. 5TYKCh. 52 - One reason why human populations have been able to...Ch. 52 - Prob. 7TYKCh. 52 - A population of 1,000 individuals experiences 462...Ch. 52 - Prob. 9TYKCh. 52 - Prob. 10TYKCh. 52 - Prob. 11TYKCh. 52 - Prob. 12TYKCh. 52 - Discuss Concepts Many city-dwellers have noted...Ch. 52 - Prob. 15TYKCh. 52 - Prob. 1ITD
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- Which 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_forwardWhen 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.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
- Population growth is exponential for the human population. It is an example of a positive feedback cycle where with each child born, the potential number of parents increases in the future. What is the most logical conclusion as to when the human population will reach its carrying capacity? A. When a regulating factor exists that keeps the population at equilibrium B. When feedback mechanisms kick in and population growth declines below carrying capacity C. When equilibirum is reached D. When density-dependent factors come into play and population levels start to decline ❌arrow_forwardA 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 curvearrow_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
- Human 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_forwardPopulation growth that is dependent on the number of individuals A. Arithmetic Growth B. Carrying Capacity C. Intrinsic Rate of Growth D. Exponential Growtharrow_forwardThe carrying capacity (K) is the maximum population size that can be supported or sustained by a given environment. Which of the following statements about the carrying capacity is NOT true? Select one: a. We can think of K as some "average" value that a given environment can support. b. Environmental fluctuations cause the carrying capacity to fluctuate over time. c. Once a population reaches its carrying capacity, the size of the population remains constant. d. When a population overshoots K, individuals die due to lack of resources.arrow_forward
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