Question 1

Refer to the accompanying figure. At which point do the environmental limits begin to slow the growth rate?

Accepted Answer

A)  A 
B)  B 
C)  C 
D)  D 
E)  There are considerable environmental limits on all regions of the graph. 
A)  A 
B)  B 
C)  C 
D)  D 
E)  There are considerable environmental limits on all regions of the graph.

Question 2

People overpopulation is the current problem in many developing nations.

Accepted Answer

A) True 
 B)False

Question 3

Compare and contrast Type I and Type III survivorship curves. Sketch a correctly labeled graph to support your comparison. BONUS: Identify two organisms that represent each of the two types of survivorship strategies discussed here.

Accepted Answer

The sketch should resemble Figure 53-8.

Question 4

Consumption overpopulation occurs when each individual in a population consumes too large a share of resources.

Accepted Answer

A) True 
 B)False

Question 5

The moose population on Isle Royale is an example of:

Accepted Answer

A)  interspecific exploitation competition. 
B)  intraspecific exploitation competition. 
C)  interspecific contest competition. 
D)  intraspecific contest competition. 
E)  both intraspecific contest competition and scramble competition. 
A)  interspecific exploitation competition. 
B)  intraspecific exploitation competition. 
C)  interspecific contest competition. 
D)  intraspecific contest competition. 
E)  both intraspecific contest competition and scramble competition.

Question 6

Figure 53-3 ​
 
​
According to the data in the accompanying figure, the cause of the decline of the wolf population in 1982 was:

Accepted Answer

A)  a sharp decrease in food supply. 
B)  a decrease in the intrinsic rate of increase for the wolf population. 
C)  competition with a newly introduced predator. 
D)  introduction of a disease organism. 
E)  cannot be determined from the data provided. 
A)  a sharp decrease in food supply. 
B)  a decrease in the intrinsic rate of increase for the wolf population. 
C)  competition with a newly introduced predator. 
D)  introduction of a disease organism. 
E)  cannot be determined from the data provided.

Question 7

The British clergyman and economist Malthus was one of the first to recognize which of the following?

Accepted Answer

A)  Human populations cannot continue to increase indefinitely. 
B)  Animals arrange themselves into populations. 
C)  Some species are r -strategists. 
D)  Some species are K -strategists. 
E)  Not all species can be classified as exclusively r -strategists or K -strategists. 
A)  Human populations cannot continue to increase indefinitely. 
B)  Animals arrange themselves into populations. 
C)  Some species are r -strategists. 
D)  Some species are K -strategists. 
E)  Not all species can be classified as exclusively r -strategists or K -strategists.

Question 8

Figure 53-1 ​
 
​
The equation that would best describe the curve in the accompanying figure is:

Accepted Answer

A)  dN / dt = r . 
B)  dN / dt = N . 
C)  dN / dt = rN . 
D)  dN / dt = rN + I − e . 
E)  dN / dt = rN ( K − N ). 
A)  dN / dt = r . 
B)  dN / dt = N . 
C)  dN / dt = rN . 
D)  dN / dt = rN + I − e . 
E)  dN / dt = rN ( K − N ).

Question 9

Match between columns
                        Premises: Typically studied in laboratories

Accepted Answer

The Answer of Density dependent and Density independent is...

Question 10

When r = 0.00001, the population size:

Accepted Answer

A)  will increase. 
B)  will decrease. 
C)  is stable. 
D)  may increase or decrease, depending on K . 
E)  may increase or decrease, depending on i . 
A)  will increase. 
B)  will decrease. 
C)  is stable. 
D)  may increase or decrease, depending on K . 
E)  may increase or decrease, depending on i .

Question 11

Which of the following consists of organisms, all of which share a common gene pool?

Accepted Answer

A)  A community 
B)  A population 
C)  A biosphere 
D)  An ecosystem 
E)  A landscape 
A)  A community 
B)  A population 
C)  A biosphere 
D)  An ecosystem 
E)  A landscape

Question 12

Match between columns
                        Premises: Generally causes an increase in death rate

Accepted Answer

The Answer of Density independent and Density dependent is...

Question 13

At zero population growth:

Accepted Answer

A)  b = d. 
B)  b > d. 
C)  b d. 
D)  r > 0. 
E)  r > K . 
A)  b = d. 
B)  b > d. 
C)  b d. 
D)  r > 0. 
E)  r > K .

Question 14

The best definition of population density is the number of individuals:

Accepted Answer

A)  of all species in a given area. 
B)  of one species in a given area. 
C)  in a given area at a given time. 
D)  of all species in a given area at a given time. 
E)  of one species in a given area at a given time. 
A)  of all species in a given area. 
B)  of one species in a given area. 
C)  in a given area at a given time. 
D)  of all species in a given area at a given time. 
E)  of one species in a given area at a given time.

Question 15

Which of the following is NOT characteristic of a metapopulation?

Accepted Answer

A)  Varying levels of precipitation, soil moisture, and other properties 
B)  Recolonization of vacant habitat 
C)  Heterogeneous species dispersal 
D)  Homogeneous species dispersal 
E)  Dispersal among several local populations 
A)  Varying levels of precipitation, soil moisture, and other properties 
B)  Recolonization of vacant habitat 
C)  Heterogeneous species dispersal 
D)  Homogeneous species dispersal 
E)  Dispersal among several local populations

Question 16

What is perhaps the most common of the dispersal patterns seen in nature?

Accepted Answer

A)  Random dispersion 
B)  Disaggregated dispersion 
C)  Uniform dispersion 
D)  Density-dependent distribution 
E)  Clumped dispersion 
A)  Random dispersion 
B)  Disaggregated dispersion 
C)  Uniform dispersion 
D)  Density-dependent distribution 
E)  Clumped dispersion

Question 17

Figure 53-2 ​
 
​
On the accompanying figure, identify the point that indicates the carrying capacity for this population.

Accepted Answer

A)  A 
B)  B 
C)  C 
D)  D 
E)  Cannot be determined from this graph. 
A)  A 
B)  B 
C)  C 
D)  D 
E)  Cannot be determined from this graph.

Question 18

Clumped dispersion is often influenced by:

Accepted Answer

A)  the presence of strange groups. 
B)  sexual reproduction in plants or invertebrates. 
C)  unlimited seed dispersal in plants. 
D)  a patchy distribution of resources. 
E)  homogenous environments. 
A)  the presence of strange groups. 
B)  sexual reproduction in plants or invertebrates. 
C)  unlimited seed dispersal in plants. 
D)  a patchy distribution of resources. 
E)  homogenous environments.

Question 19

Figure 53-5 ​
 
​
Refer to the accompanying figure. A population that produces a large number of offspring, but the offspring must survive independently, would be represented by the curve labeled:

Accepted Answer

A)  A. 
B)  B. 
C)  C. 
D)  either A or B. 
E)  either A, B, or C. 
A)  A. 
B)  B. 
C)  C. 
D)  either A or B. 
E)  either A, B, or C.

Question 20

When the size of a population begins to approach K, we can expect that the growth rate will:

Accepted Answer

A)  rapidly increase. 
B)  slowly increase. 
C)  decline. 
D)  stabilize. 
E)  the answer is not predictable. 
A)  rapidly increase. 
B)  slowly increase. 
C)  decline. 
D)  stabilize. 
E)  the answer is not predictable.

Exam 53: Introduction to Ecology: Population Ecology

Refer to the accompanying figure. At which point do the environmental limits begin to slow the growth rate?

People overpopulation is the current problem in many developing nations.

Compare and contrast Type I and Type III survivorship curves. Sketch a correctly labeled graph to support your comparison. BONUS: Identify two organisms that represent each of the two types of survivorship strategies discussed here.

Consumption overpopulation occurs when each individual in a population consumes too large a share of resources.

The moose population on Isle Royale is an example of:

Figure 53-3 ​ ​ According to the data in the accompanying figure, the cause of the decline of the wolf population in 1982 was:

The British clergyman and economist Malthus was one of the first to recognize which of the following?

Figure 53-1 ​ ​ The equation that would best describe the curve in the accompanying figure is:

When r = 0.00001, the population size:

Which of the following consists of organisms, all of which share a common gene pool?

At zero population growth:

The best definition of population density is the number of individuals:

Which of the following is NOT characteristic of a metapopulation?

What is perhaps the most common of the dispersal patterns seen in nature?

Figure 53-2 ​ ​ On the accompanying figure, identify the point that indicates the carrying capacity for this population.

Clumped dispersion is often influenced by:

Figure 53-5 ​ ​ Refer to the accompanying figure. A population that produces a large number of offspring, but the offspring must survive independently, would be represented by the curve labeled:

When the size of a population begins to approach K, we can expect that the growth rate will:

A View of Life

Atoms and Molecules: the Chemical Basis of Life

The Chemistry of Life: Organic Compounds

Organization of the Cell

Biological Membranes

Cell Communication

Energy and Metabolism

How Cells Make Atp: Energy-Releasing Pathways

Photosynthesis: Capturing Light Energy

Chromosomes, Mitosis, and Meiosis

The Basic Principles of Heredity

DNA: The Carrier of Genetic Information

Gene Expression

Gene Regulation

DNA Technology and Genomics

Human Genetics and the Human Genome

Developmental Genetics

Introduction to Darwinian Evolution

Evolutionary Change in Populations

Speciation and Macroevolution

The Origin and Evolutionary History of Life

The Evolution of Primates

Understanding Diversity: Systematics

Viruses and Subviral Agents

Bacteria and Archaea

Protists

Seedless Plants

Seed Plants

The Fungi

An Introduction to Animal Diversity

Sponges, Cnidarians, Ctenophores, and Protostomes

The Deuterostomes

Plant Structure, Growth, and Development

Leaf Structure and Function

Stem Structure and Transport

Roots and Mineral Nutrition

Reproduction in Flowering Plants

Plant Developmental Responses to External and Internal Signals

Animal Structure and Function: an Introduction

Protection, Support, and Movement

Neural Signaling

Neural Regulation

Sensory Systems

Internal Transport

The Immune System: Internal Defense

Gas Exchange

Processing Food and Nutrition

Osmoregulation and Disposal of Metabolic Wastes

Endocrine Regulation

Reproduction

Animal Development

Animal Behavior

Community Ecology

Ecosystems and the Biosphere

Ecology and the Geography of Life

Biological Diversity and Conservation Biology

Filters

Figure 53-3 According to the data in the accompanying figure, the cause of the decline of the wolf population in 1982 was:

Figure 53-1 The equation that would best describe the curve in the accompanying figure is:

Figure 53-2 On the accompanying figure, identify the point that indicates the carrying capacity for this population.

Figure 53-5 Refer to the accompanying figure. A population that produces a large number of offspring, but the offspring must survive independently, would be represented by the curve labeled: