Question 1

An example of a density-independent factor is predation.
____________________

Accepted Answer

A) True 
 B)False  False

Question 2

Less-developed countries may be characterized by:

Accepted Answer

A)  low fertility rates. 
B)  high GNI PPPs. 
C)  low doubling times. 
D)  high use of contraception. 
E)  high infant mortality rates. 
A)  low fertility rates. 
B)  high GNI PPPs. 
C)  low doubling times. 
D)  high use of contraception. 
E)  high infant mortality rates. E

Question 3

Figure 53-5
Use the figure to answer the corresponding question(s).  
-Refer to Figure 53-5.The survivorship curve for elephants would be represented by the curve labeled:

Accepted Answer

A)  A 
B)  B 
C)  C 
D)  Either A or C.It would depend upon the species. 
E)  Elephant populations would be better represented by a curve falling between A and B. 
A)  A 
B)  B 
C)  C 
D)  Either A or C.It would depend upon the species. 
E)  Elephant populations would be better represented by a curve falling between A and B. C

Question 4

Figure 53-2
Use the figure to answer the corresponding question(s).  
-Figure 53-2 models a __________-shaped growth curve.

Accepted Answer

A)  J 
B)  S 
C)  r 
D)  K 
E)  b 
A)  J 
B)  S 
C)  r 
D)  K 
E)  b

Question 5

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 6

Territoriality often results in clumped dispersion.
____________________

Accepted Answer

A) True 
 B)False

Question 7

MATCHING
Match the term in a growth rate equation with its definition.
a.b
e.K
b.d
f.N
c.e
g.r
d.i
-per capita growth rate

Accepted Answer

The answer of MATCHING
Match the term in a growth rate...

Question 8

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 9

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

Accepted Answer

A) True 
 B)False

Question 10

Which of the following would not increase population size?

Accepted Answer

A)  natality 
B)  mortality 
C)  immigration 
D)  r greater than 1 
E)  r greater than 2 
A)  natality 
B)  mortality 
C)  immigration 
D)  r greater than 1 
E)  r greater than 2

Question 11

Species that exhibit repeated reproductive cycles are said to be semelparous.
____________________

Accepted Answer

A) True 
 B)False

Question 12

MATCHING
Match the term in a growth rate equation with its definition.
a.b
e.K
b.d
f.N
c.e
g.r
d.i
-"x" in the equation dN/dt = rN[(x-N)/x]

Accepted Answer

The answer of MATCHING
Match the term in a growth rate...

Question 13

A population that is divided into several local populations among which individuals occasionally disperse (emigrate and immigrate) is known as a:

Accepted Answer

A)  metapopulation. 
B)  life table. 
C)  survivorship curve. 
D)  source population. 
E)  sink population. 
A)  metapopulation. 
B)  life table. 
C)  survivorship curve. 
D)  source population. 
E)  sink population.

Question 14

Clumped dispersion is often influenced by all of the following except:

Accepted Answer

A)  the presence of family groups. 
B)  asexual reproduction in plants or invertebrates. 
C)  limited seed dispersal in plants. 
D)  a patchy distribution of resources. 
E)  nesting territoriality. 
A)  the presence of family groups. 
B)  asexual reproduction in plants or invertebrates. 
C)  limited seed dispersal in plants. 
D)  a patchy distribution of resources. 
E)  nesting territoriality.

Question 15

Oysters have a Type-II survivorship curve.
____________________

Accepted Answer

A) True 
 B)False

Question 16

MATCHING
Match the term in a growth rate equation with its definition.
a.b
e.K
b.d
f.N
c.e
g.r
d.i
-per capita birth rate

Accepted Answer

The answer of MATCHING
Match the term in a growth rate...

Question 17

Figure 53-4
Use the figure to answer the corresponding question(s).  
-Figure 53-4 is representative of:

Accepted Answer

A)  exponential growth. 
B)  iteroparity. 
C)  Type I survivorship. 
D)  Type III survivorship. 
E)  Type II survivorship. 
A)  exponential growth. 
B)  iteroparity. 
C)  Type I survivorship. 
D)  Type III survivorship. 
E)  Type II survivorship.

Question 18

When two members of the same species compete for a limited resource, resulting in equal sharing of the limited resource, it is termed:

Accepted Answer

A)  interspecific scramble competition. 
B)  intraspecific scramble competition. 
C)  interspecific contest competition. 
D)  intraspecific contest competition. 
E)  density-independent competition. 
A)  interspecific scramble competition. 
B)  intraspecific scramble competition. 
C)  interspecific contest competition. 
D)  intraspecific contest competition. 
E)  density-independent competition.

Question 19

The world human population has increased dramatically during the past few centuries due to:

Accepted Answer

A)  increased immigration. 
B)  increased emigration. 
C)  decreased death rates. 
D)  increased birth rates. 
E)  decreased birth rates. 
A)  increased immigration. 
B)  increased emigration. 
C)  decreased death rates. 
D)  increased birth rates. 
E)  decreased birth rates.

Question 20

Source habitats are areas where reproductive success is less than local mortality.
____________________

Accepted Answer

A) True 
 B)False

Exam 53: Introduction to Ecology: Population Ecology

An example of a density-independent factor is predation. ____________________

Less-developed countries may be characterized by:

Figure 53-5 Use the figure to answer the corresponding question(s). -Refer to Figure 53-5.The survivorship curve for elephants would be represented by the curve labeled:

Figure 53-2 Use the figure to answer the corresponding question(s). -Figure 53-2 models a __________-shaped growth curve.

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

Territoriality often results in clumped dispersion. ____________________

MATCHING Match the term in a growth rate equation with its definition. a.b e.K b.d f.N c.e g.r d.i -per capita growth rate

When r = 0.00001, the population size:

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

Which of the following would not increase population size?

Species that exhibit repeated reproductive cycles are said to be semelparous. ____________________

MATCHING Match the term in a growth rate equation with its definition. a.b e.K b.d f.N c.e g.r d.i -"x" in the equation dN/dt = rN[(x-N)/x]

A population that is divided into several local populations among which individuals occasionally disperse (emigrate and immigrate) is known as a:

Clumped dispersion is often influenced by all of the following except:

Oysters have a Type-II survivorship curve. ____________________

MATCHING Match the term in a growth rate equation with its definition. a.b e.K b.d f.N c.e g.r d.i -per capita birth rate

Figure 53-4 Use the figure to answer the corresponding question(s). -Figure 53-4 is representative of:

When two members of the same species compete for a limited resource, resulting in equal sharing of the limited resource, it is termed:

The world human population has increased dramatically during the past few centuries due to:

Source habitats are areas where reproductive success is less than local mortality. ____________________

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

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