Question 1

In which ways has the human population avoided the effects of density-dependent regulating factors?

Accepted Answer

A)  expansion to new terrains; isolation as a species; and domestication of animals and plants 
B)  expansion to new terrains; domestication of animals and plants; and advancement in public health 
C)  expansion to new terrains; feeding on other species; and advancement in public health 
D)  expansion to new terrains; isolation as a species; and advancement in public health 
A)  expansion to new terrains; isolation as a species; and domestication of animals and plants 
B)  expansion to new terrains; domestication of animals and plants; and advancement in public health 
C)  expansion to new terrains; feeding on other species; and advancement in public health 
D)  expansion to new terrains; isolation as a species; and advancement in public health D

Question 2

Match each statement with the most appropriate survivorship curve.
-typical of humans

Accepted Answer

A) type I 
B) type II 
C) type III 
A) type I 
B) type II 
C) type III A

Question 3

Use the list of terms to identify each lettered part of the illustration.  
-post-reproductive

Accepted Answer

d

Question 4

Suppose that you are studying nests in colonies of colonial birds. What distribution type would you most likely find?

Accepted Answer

A)  uniform 
B)  random 
C)  clumped 
D)  dense 
A)  uniform 
B)  random 
C)  clumped 
D)  dense

Question 5

Match each term with its definition.
-population density

Accepted Answer

A) population increasing steadily by a constant ratio 
B) average number of offspring produced by females during each age interval 
C) population growth slowing as population approaches K 
D) number of individuals per unit area or unit volume 
E) movement out of a population 
A) population increasing steadily by a constant ratio 
B) average number of offspring produced by females during each age interval 
C) population growth slowing as population approaches K 
D) number of individuals per unit area or unit volume 
E) movement out of a population

Question 6

What caused a little dip in the mid-fourteenth century in the human population growth?

Accepted Answer

A)  hunger 
B)  the bubonic plague 
C)  domestication of plants 
D)  domestication of animals 
A)  hunger 
B)  the bubonic plague 
C)  domestication of plants 
D)  domestication of animals

Question 7

Match each description to an equation.
-change in population size

Accepted Answer

A) ÄN/Ät = B - D 
B) dN/dt = (b - d)N 
C) dN/dt = rmaxN 
D) d = (D/N) 
E) dN/dt = rmaxN(K - N)/K 
A) ÄN/Ät = B - D 
B) dN/dt = (b - d)N 
C) dN/dt = rmaxN 
D) d = (D/N) 
E) dN/dt = rmaxN(K - N)/K

Question 8

Which factor is a density-dependent regulator of population size?

Accepted Answer

A)  drought 
B)  flood 
C)  hurricane 
D)  disease 
A)  drought 
B)  flood 
C)  hurricane 
D)  disease

Question 9

Suppose that a population of 100 animals in logarithmic growth has rmax = 0.4 and K = 102. Also suppose that r = rmax(K - N)/K. What is the value of r?

Accepted Answer

A)  0.792 
B)  0.580 
C)  0.078 
D)  0.0078 
A)  0.792 
B)  0.580 
C)  0.078 
D)  0.0078

Question 10

Figure 29-1  
-Which survivorship curve in in Figure 29-1 best fits humans who live in environments with good medical care?

Accepted Answer

A)  type I, shown in graph A 
B)  type I, shown in graph C 
C)  type III, shown in graph B 
D)  type III, shown in graph A 
A)  type I, shown in graph A 
B)  type I, shown in graph C 
C)  type III, shown in graph B 
D)  type III, shown in graph A

Question 11

Which term refers to distributions that tend to occur in populations in which individuals repel each other because resources are in short supply?

Accepted Answer

A)  clumped 
B)  random 
C)  uniform 
D)  unpredictable 
A)  clumped 
B)  random 
C)  uniform 
D)  unpredictable

Question 12

Use the list of terms to identify each lettered part of the illustration.  
-reproductive

Accepted Answer

The answer of Use the list of terms to identify...

Question 13

Number of offspring and the amount of care provided to each offspring by their parents evolved along with which of the following characteristics?

Accepted Answer

A)  the number of reproductive episodes 
B)  the chance of survival to adulthood 
C)  type of parental care 
D)  fecundity 
A)  the number of reproductive episodes 
B)  the chance of survival to adulthood 
C)  type of parental care 
D)  fecundity

Question 14

Why is controlling malaria an example of a Sisyphean problem?

Accepted Answer

A)  It is an easy problem. 
B)  It is approached as a high risk. 
C)  It is an eternal frustration. 
D)  It is easily eradicated. 
A)  It is an easy problem. 
B)  It is approached as a high risk. 
C)  It is an eternal frustration. 
D)  It is easily eradicated.

Question 15

Use the list of terms to identify each lettered part of the illustration.  
-rapid growth

Accepted Answer

The answer of Use the list of terms to identify...

Question 16

An S-shaped curve is characteristic of logistic population growth.

Accepted Answer

A) True 
 B)False

Question 17

Suppose that you want to monitor populations of endangered species. Which of these criteria would you use?

Accepted Answer

A)  Population density and habitat. 
B)  Population size and geographical range. 
C)  Population size and density. 
D)  Population geographical range. 
A)  Population density and habitat. 
B)  Population size and geographical range. 
C)  Population size and density. 
D)  Population geographical range.

Question 18

Which of following factors is an intrinsic control to population growth?

Accepted Answer

A)  increased volcanic eruptions 
B)  increased dispersal 
C)  increased predation 
D)  humans 
A)  increased volcanic eruptions 
B)  increased dispersal 
C)  increased predation 
D)  humans

Question 19

Suppose that your friend asked you to explain population size to them. Which of the following should you tell them?

Accepted Answer

A)  It is the number of individuals making up the population at any time. 
B)  It is the number of individuals making up the population at a specified time. 
C)  It is the number of individuals per unit area of habitat. 
D)  It is the number of individuals per unit volume of habitat. 
A)  It is the number of individuals making up the population at any time. 
B)  It is the number of individuals making up the population at a specified time. 
C)  It is the number of individuals per unit area of habitat. 
D)  It is the number of individuals per unit volume of habitat.

Question 20

Categorize each trait as belonging predominantly to an r-selected species or a K-selected species.
-extensive parental care

Accepted Answer

A) r-selected 
B) K-selected 
A) r-selected 
B) K-selected

Exam 29: Population Ecology

In which ways has the human population avoided the effects of density-dependent regulating factors?

Match each statement with the most appropriate survivorship curve. -typical of humans

Use the list of terms to identify each lettered part of the illustration. -post-reproductive

Suppose that you are studying nests in colonies of colonial birds. What distribution type would you most likely find?

Match each term with its definition. -population density

What caused a little dip in the mid-fourteenth century in the human population growth?

Match each description to an equation. -change in population size

Which factor is a density-dependent regulator of population size?

Suppose that a population of 100 animals in logarithmic growth has rmax = 0.4 and K = 102. Also suppose that r = rmax(K - N)/K. What is the value of r?

Figure 29-1 -Which survivorship curve in in Figure 29-1 best fits humans who live in environments with good medical care?

Which term refers to distributions that tend to occur in populations in which individuals repel each other because resources are in short supply?

Use the list of terms to identify each lettered part of the illustration. -reproductive

Number of offspring and the amount of care provided to each offspring by their parents evolved along with which of the following characteristics?

Why is controlling malaria an example of a Sisyphean problem?

Use the list of terms to identify each lettered part of the illustration. -rapid growth

An S-shaped curve is characteristic of logistic population growth.

Suppose that you want to monitor populations of endangered species. Which of these criteria would you use?

Which of following factors is an intrinsic control to population growth?

Suppose that your friend asked you to explain population size to them. Which of the following should you tell them?

Categorize each trait as belonging predominantly to an r-selected species or a K-selected species. -extensive parental care

Light and Life

The Cell: an Overview

Energy and Enzymes

Cell Membranes and Signaling

Cellular Respiration

Photosynthesis

Cell Cycles

Genetic Recombination

The Chromosomal Basis of Mendelian Inheritance

Genetic Linkage, Sex-Linkage, and Other Non-Mendelian Inheritance Mechanisms

DNA Structure, Replication, and Repair

Gene Structure Expression, and Mutation

Regulation of Gene Expression

Dna Technologies

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Evolution: the Development of the Theory

Microevolution: Changes Within Populations

Speciation and Macroevolution

Systematics and Phylogenetics: Revealing the Tree of Life

Humans and Evolution

Defining Life and Its Origins

Viruses, Viroids, and Prions: Infectious Biological Particles

Bacteria and Archaea

Protists

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Species Interactions and Community Ecology

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Animal Behaviour

Organization of the Plant Body

Transport in Plants

Reproduction and Development in Flowering Plants

Plant Nutrition

Plant Signals and Responses to the Environment

Introduction to Animal Organization and Physiology

Animal Nutrition

Gas Exchange: the Respiratory System

Internal Transport: the Circulatory System

Regulation of the Internal Environment: Water, Solutes, and Temperature

Control of Animal Processes: Endocrine Control

Animal Reproduction

Control of Animal Processes: Neural Control

Muscles, Skeletons, and Body Movements

Filters

Suppose that a population of 100 animals in logarithmic growth has r_max = 0.4 and K = 102. Also suppose that r = r_max(K - N)/K. What is the value of r?