Pearson eText Biology: Science for Life with Physiology -- Instant Access (Pearson+)
6th Edition
ISBN: 9780135214114
Author: Colleen Belk, Virginia Maier
Publisher: PEARSON+
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Chapter 15, Problem 10LTB
Summary Introduction
Introduction:
The population dynamics occur when there is a delay from the time when people lower birth rates to when population growth begins to decrease. A population goes on increasing for another 60-70 years even if the birth rates are reduced voluntarily.
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A population is expected to grow exponentially
after a severe population bottleneck.
when the population size is exceeding the carrying capacity of the environment.
when the population size is close but below the carrying capacity of the environment.
when the birth rate changes as a function of the population
A population is expected to grow exponentially
when the population size is close but below the carrying capacity of the
environment.
when the population size is exceeding the carrying capacity of the environment.
when the birth rate changes as a function of the population
after a severe population bottleneck.
Which of the following is a density-independent factor limiting population growth in humans?
fatal genetic diseases
temperature
competition for food
fatal contagious diseases
Chapter 15 Solutions
Pearson eText Biology: Science for Life with Physiology -- Instant Access (Pearson+)
Ch. 15 - Prob. 1LTBCh. 15 - Prob. 2LTBCh. 15 - Prob. 3LTBCh. 15 - Prob. 4LTBCh. 15 - According to the graph shown here, the carrying...Ch. 15 - All of the following are density-dependent factors...Ch. 15 - In contrast to nonhuman populations, human...Ch. 15 - Populations that rely on stored resources are...Ch. 15 - The current carrying capacity of Earth for the...Ch. 15 - Prob. 10LTB
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- In a graph of population size versus time, a J-shaped curve is characteristic of (a) exponential population growth (b) logistic population growth (c) zero population growth (d) replacement-level fertility (e) population growth momentumarrow_forwardThe largest population that can be maintained by a particular environment for an indefinite period is known as a (a) semelparous population (b) population undergoing exponential growth (c) metapopulation (d) populations carrying capacity (e) source populationarrow_forwardThe maximum rate at which a population could increase under ideal conditions is known as its (a) total fertility rate (b) survivorship (c) intrinsic rate of increase (d) doubling time (e) age structurearrow_forward
- Which of the following statements about logistic growth is not correct? A population growing logistically has reached the carrying capacity of the environment in which it lives. A logistically growing population is represented by an S-shaped curve. When a population is growing logistically, it is limited by factors such as food supply and water. In a logistically growing population, the birth rate is much greater than the death rate.arrow_forwardWhich of the following is a regulator of population size (helps to move it toward its carrying capacity)? Weather (storms, floods, droughts) Density dependence Demographic stochasticityarrow_forwardPopulation size (M) K NX K The figure depicts which type of population growth? logistic normal geometric Time (t) exponentialarrow_forward
- Demographic momentum is the population principle that states that; Populations cannot exceed their carrying capacity Youthful populations grow much faster than populations with many older people The resources of the earth are finite and so no population can grow forever We can increase production to account for the growing human populationarrow_forwardWhich of the following would directly cause a population to shift from exponential to logistic population growth? Select all that apply. decreased death rate competition for resources removal of predators O favorable climatic conditions contagious diseasearrow_forwardGiven the following figure of logistic growth, Logistic Growth D A Time when the population reaches point C on the figure, we can conclude that: birth rate is greater than death rate the population has surpassed carrying capacity death rate is equal to birth rate death rate is greater than birth rate Population sizearrow_forward
- The discrete logistic function (the one you can solve with your calculator) has a time lag built in = one generation. What would a greater time lag do to the outcome? increase the chances of population exceeding K decrease the chances of population exceeding K slow down population growth by decreasing r increase population growth by increasing r it would have little/no effect under all circumstancesarrow_forwardA population of rabbits, when introduced to a new environment with abundant resources, would most likely display what type of growth? Logistic growth Exponential growth Negative growth No growtharrow_forwardWhen there are no limits to population growth, rmax represents which of the following? maximum reproductive rate maximum per capita reproduction rate maximum per capita growth rate none of the options are correct maximum life history rate Which of the following traits would not be considered a life history trait? age at maturity how often they reproduce size of their horns size of offspring none of the options are correctarrow_forward
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POPULATION REGULATION AND LIMITING FACTORS | DENSITY INDEPENDENT AND DENSITY DEPENDENT FACTORS; Author: BioVidyalaya;https://www.youtube.com/watch?v=mB-AB-5Wnhs;License: Standard YouTube License, CC-BY
Population growth; Author: SiouxScience;https://www.youtube.com/watch?v=XnaC9iOumVA;License: Standard YouTube License, CC-BY