Question 1

The decrease in the availability of food,access to water,or access to cover that accompanies increasing population size illustrates the concept of a(n)

Accepted Answer

A)  density-dependent factor. 
B)  density-independent factor. 
C)  emigration-related factor. 
D)  high-carrying capacity factor. 
A)  density-dependent factor. 
B)  density-independent factor. 
C)  emigration-related factor. 
D)  high-carrying capacity factor.

Question 2

The maximum population size that can be supported by its habitat is known as

Accepted Answer

A)  maximum increase. 
B)  carrying capacity. 
C)  exponential growth. 
D)  population balance. 
A)  maximum increase. 
B)  carrying capacity. 
C)  exponential growth. 
D)  population balance.

Question 3

The ecological footprint of a typical college student in the United States is about the same as a typical college student at a university in China.

Accepted Answer

A) True 
 B)False

Question 4

A flock of geese (Flock A)has 100 individuals and an annual growth rate,r,of 1.5.Another flock (Flock B)has 200 individuals and an r of .7.Flock C has a population of 75 and an r of 2.Flock D has a population of 50 and an r of 4.Assuming no other factors are involved,which herd will be largest next year?

Accepted Answer

A)  Flock A 
B)  Flock B 
C)  Flock C 
D)  Flock D 
A)  Flock A 
B)  Flock B 
C)  Flock C 
D)  Flock D

Question 5

Although it happened long ago,the story of Easter Island should be of concern to modern man;in some ways,the Earth is like an island-all of its resources are confined by a boundary as significant as a shoreline.

Accepted Answer

A) True 
 B)False

Question 6

The following graph shows the growth of a Paramecium population.
 
The greatest amount of daily growth occurred when the population was at approximately ________ percent of its carrying capacity.

Accepted Answer

A)  10 
B)  25 
C)  50 
D)  100 
A)  10 
B)  25 
C)  50 
D)  100

Question 7

The carrying capacity of a population can be affected by weather,the daily fluctuations in temperature,rainfall,and the other factors that contribute to climate.

Accepted Answer

A) True 
 B)False

Question 8

A new species is introduced into a given area.The population size begins to grow slowly,then at a very rapid rate,and finally levels off at a stable number.This growth pattern is best represented by a(n)

Accepted Answer

A)  oscillating cycle. 
B)  J-shaped population curve. 
C)  A-shaped population curve. 
D)  S-shaped population curve. 
A)  oscillating cycle. 
B)  J-shaped population curve. 
C)  A-shaped population curve. 
D)  S-shaped population curve.

Question 9

Because of its shape,the curve describing population growth that occurs when a population grows exponentially is termed ________-shaped.

Accepted Answer

The answer of Because of its shape,the curve describing population...

Question 10

Which of the following populations would be most vulnerable to an outbreak of a communicable disease?

Accepted Answer

A)  10 grasshoppers living in an area of 100 square meters 
B)  100 rabbits living in an area of 10,000 square meters 
C)  200 sparrows living in an area of 20,000 square meters 
D)  250,000 people living in an area of 100,000 square meters 
A)  10 grasshoppers living in an area of 100 square meters 
B)  100 rabbits living in an area of 10,000 square meters 
C)  200 sparrows living in an area of 20,000 square meters 
D)  250,000 people living in an area of 100,000 square meters

Question 11

The carrying capacity of owls in an Alaskan forest is 8 per square kilometer.What will happen if 12 owls are confined to a 1-square-kilometer area?

Accepted Answer

A)  The owls will survive together and develop ways to share resources. 
B)  The owls might survive as malnourished adults,but the next generation will have no more than eight individuals. 
C)  The population of owl prey organisms will increase proportionately. 
D)  A short-term exponential growth of owls will occur. 
A)  The owls will survive together and develop ways to share resources. 
B)  The owls might survive as malnourished adults,but the next generation will have no more than eight individuals. 
C)  The population of owl prey organisms will increase proportionately. 
D)  A short-term exponential growth of owls will occur.

Question 12

When population size is high,the rate of deaths related to disease,starvation,predator,and accidents increases;because their rates vary with population size,these mortality factors are considered ________.

Accepted Answer

The answer of When population size is high,the rate of...

Question 13

The amount of productive land and water that individuals or populations require to provide their required resources and dispose of its wastes is called the

Accepted Answer

A)  sustainable area. 
B)  ecological footprint. 
C)  biological acreage. 
D)  environmental measure. 
A)  sustainable area. 
B)  ecological footprint. 
C)  biological acreage. 
D)  environmental measure.

Question 14

Billions of people throughout the world currently consume insects and this number will likely increase if population growth trends continue upward.Consuming insects makes good sense for all of the following reasons EXCEPT

Accepted Answer

A)  insects are highly nutritious with a protein content equal to conventional foods. 
B)  insects are abundant and typically have very high population growth rates. 
C)  insects can be grown,harvested,and processed with relatively little environmental impact. 
D)  consuming insects helps reduces their overall impact as pest organisms. 
A)  insects are highly nutritious with a protein content equal to conventional foods. 
B)  insects are abundant and typically have very high population growth rates. 
C)  insects can be grown,harvested,and processed with relatively little environmental impact. 
D)  consuming insects helps reduces their overall impact as pest organisms.

Question 15

Population size is affected by both density-independent and density-dependent factors;daily weather is an example of a density-________ factor.

Accepted Answer

The answer of Population size is affected by both density-independent...

Question 16

A group of interacting individuals of the same species living within the same area comprises a(n)________.

Accepted Answer

The answer of A group of interacting individuals of the...

Question 17

The size of a population can be decreased by

Accepted Answer

A)  a higher birth rate. 
B)  immigration. 
C)  emigration. 
D)  a reduced death rate. 
A)  a higher birth rate. 
B)  immigration. 
C)  emigration. 
D)  a reduced death rate.

Question 18

Once a population reaches its carry capacity,its size will remain stable indefinitely.

Accepted Answer

A) True 
 B)False

Question 19

The following figure shows that the human population was small and relatively stable for nearly 12,000 years but has increased dramatically in the past 200 years.
 
How might this increase in population growth be explained?

Accepted Answer

A)  Effective methods of intercontinental travel permitted humans to immigrate to locations better suited to support larger populations. 
B)  For most of human history,people were too malnourished to have many children. 
C)  People simply chose to have fewer children and smaller families in the past than at present. 
D)  Prior human populations were at existing carrying capacities,but newly developed technologies have raised the carrying capacity and permitted the recent expansion. 
A)  Effective methods of intercontinental travel permitted humans to immigrate to locations better suited to support larger populations. 
B)  For most of human history,people were too malnourished to have many children. 
C)  People simply chose to have fewer children and smaller families in the past than at present. 
D)  Prior human populations were at existing carrying capacities,but newly developed technologies have raised the carrying capacity and permitted the recent expansion.

Question 20

If there are 100 people living in a 2-square-kilometer area,the population density in people per square kilometer would be ________.

Accepted Answer

The answer of If there are 100 people living in...

Exam 21: Growth of Populations

The decrease in the availability of food,access to water,or access to cover that accompanies increasing population size illustrates the concept of a(n)

The maximum population size that can be supported by its habitat is known as

The ecological footprint of a typical college student in the United States is about the same as a typical college student at a university in China.

Although it happened long ago,the story of Easter Island should be of concern to modern man;in some ways,the Earth is like an island-all of its resources are confined by a boundary as significant as a shoreline.

The following graph shows the growth of a Paramecium population. The greatest amount of daily growth occurred when the population was at approximately ________ percent of its carrying capacity.

The carrying capacity of a population can be affected by weather,the daily fluctuations in temperature,rainfall,and the other factors that contribute to climate.

A new species is introduced into a given area.The population size begins to grow slowly,then at a very rapid rate,and finally levels off at a stable number.This growth pattern is best represented by a(n)

Because of its shape,the curve describing population growth that occurs when a population grows exponentially is termed ________-shaped.

Which of the following populations would be most vulnerable to an outbreak of a communicable disease?

The carrying capacity of owls in an Alaskan forest is 8 per square kilometer.What will happen if 12 owls are confined to a 1-square-kilometer area?

When population size is high,the rate of deaths related to disease,starvation,predator,and accidents increases;because their rates vary with population size,these mortality factors are considered ________.

The amount of productive land and water that individuals or populations require to provide their required resources and dispose of its wastes is called the

Billions of people throughout the world currently consume insects and this number will likely increase if population growth trends continue upward.Consuming insects makes good sense for all of the following reasons EXCEPT

Population size is affected by both density-independent and density-dependent factors;daily weather is an example of a density-________ factor.

A group of interacting individuals of the same species living within the same area comprises a(n)________.

The size of a population can be decreased by

Once a population reaches its carry capacity,its size will remain stable indefinitely.

The following figure shows that the human population was small and relatively stable for nearly 12,000 years but has increased dramatically in the past 200 years. How might this increase in population growth be explained?

If there are 100 people living in a 2-square-kilometer area,the population density in people per square kilometer would be ________.

The Nature of Science and the Characteristics of Life

The Chemistry of Life

Cell Structure and Internal Compartments

Cell Membranes, Transport, and Communication

Energy, Metabolism, and Enzymes

Photosynthesis and Cellular Respiration

Cell Division

Cancer and Human Health

Patterns of Inheritance

Chromosomes and Human Genetics

DNA and Genes

From Gene to Protein

DNA Technology

How Evolution Works

The Origin of Species

The Evolution of Biodiversity

Biological Diversity, Bacteria, and Archaea

Protista, Plantae, and Fungi

Animalia

The Biosphere

Animal Behavior

Ecological Communities

Ecosystems

Global Change

Internal Organization and Homeostasis

Nutrition and Digestion

Circulation and Gas Exchange

Animal Hormones

Nervous and Sensory Systems

Skeletons,Muscles,and Movement

The Immune System

Reproduction and Development

Plant Structure, Nutrition, and Transport

Plant Growth and Reproduction

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