Question 1

Which of the following has NOT been shown to be a consequence of China's one-child policy?

Accepted Answer

A) an unbalanced age ratio with a growing elderly population and a much smaller working population 
B) a skewed sex ratio with a larger proportion of the population being male than female 
C) a dramatic decrease in the birth rate that began shortly after implementation of the one-child policy 
D) human-rights abuses, such as forced abortions 
A) an unbalanced age ratio with a growing elderly population and a much smaller working population 
B) a skewed sex ratio with a larger proportion of the population being male than female 
C) a dramatic decrease in the birth rate that began shortly after implementation of the one-child policy 
D) human-rights abuses, such as forced abortions

Question 2

The definition of an area, relative to a population study,

Accepted Answer

A) is constant. 
B) is always 1 square meter. 
C) depends on the questions being asked. 
D) depends on whether the area is terrestrial or aquatic. 
A) is constant. 
B) is always 1 square meter. 
C) depends on the questions being asked. 
D) depends on whether the area is terrestrial or aquatic.

Question 3

Which of the following populations would be most vulnerable to an outbreak of 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 4

This 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) Disease prevented any significant growth of the human population. 
B) For most of human history people were too malnourished to have children. 
C) People simply chose to have fewer children 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) Disease prevented any significant growth of the human population. 
B) For most of human history people were too malnourished to have children. 
C) People simply chose to have fewer children 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 5

Which of the following would likely occur as a population reaches carrying capacity?

Accepted Answer

A) Density-independent deaths would increase. 
B) Density-dependent deaths would increase. 
C) Use of resources, such as food and space, would decrease. 
D) Birth rates would increase to maintain population size. 
A) Density-independent deaths would increase. 
B) Density-dependent deaths would increase. 
C) Use of resources, such as food and space, would decrease. 
D) Birth rates would increase to maintain population size.

Question 6

Explain why logistic growth curves have an "S" shape.

Accepted Answer

A logistic growth curve shows a steep in

Question 7

Use a specific example to explain how population density may change for people living in one country without any change in population size.

Accepted Answer

Population density is the number of indi

Question 8

The carrying capacity of owls in an Alaskan forest is seven per square kilometer. What will happen if twelve 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 but the population size in the future will most likely be close to seven. 
C) The population of owl prey organisms will increase proportionately to support a larger population of owls. 
D) A short-term exponential growth of owls will occur because more mating pairs will form. 
A) The owls will survive together and develop ways to share resources. 
B) The owls might survive but the population size in the future will most likely be close to seven. 
C) The population of owl prey organisms will increase proportionately to support a larger population of owls. 
D) A short-term exponential growth of owls will occur because more mating pairs will form.

Question 9

Is it reasonable to expect that all habitats suitable for a given organism will have the same carrying capacity for that organism?

Accepted Answer

A) Yes, unless the carrying capacities are the same, the habitat would not be suitable. 
B) Yes, the carrying capacity is determined solely by the type of organism being considered. 
C) No, an organism may be able to live in many locations, but the resources it requires may be available in varying amounts. 
D) No, it is not possible for two habitats to have the same carrying capacity. 
A) Yes, unless the carrying capacities are the same, the habitat would not be suitable. 
B) Yes, the carrying capacity is determined solely by the type of organism being considered. 
C) No, an organism may be able to live in many locations, but the resources it requires may be available in varying amounts. 
D) No, it is not possible for two habitats to have the same carrying capacity.

Question 10

Match each term to a statement listed below.
-total number of individuals in a population within a given area

Accepted Answer

A) population size 
B) population density 
C) carrying capacity 
D) logistic growth 
E) exponential growth 
A) population size 
B) population density 
C) carrying capacity 
D) logistic growth 
E) exponential growth

Question 11

If we humans do not limit our population growth rate, we will exceed the ________ of our environment, leading to a larger population than the environment can support.

Accepted Answer

The answer of If we humans do not limit our...

Question 12

Which of the following statements does NOT explain why population density is often difficult to measure?

Accepted Answer

A) Individuals may be difficult to detect within some habitats. 
B) The population size may be very large. 
C) An accurate count of the population size may not be available. 
D) Individuals may be moving between populations. 
A) Individuals may be difficult to detect within some habitats. 
B) The population size may be very large. 
C) An accurate count of the population size may not be available. 
D) Individuals may be moving between populations.

Question 13

A population of 100 individuals has a doubling time of 25 years. What size will this population be in 100 years?

Accepted Answer

A) 100 
B) 400 
C) 800 
D) 1,600 
A) 100 
B) 400 
C) 800 
D) 1,600

Question 14

This graph shows the growth of a population of Paramecium caudatum. 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 15

According to the figure shown, human populations began to experience exponential growth around

Accepted Answer

A) 160,000 BCE 
B) 1800 
C) 1945 
D) 2005 
A) 160,000 BCE 
B) 1800 
C) 1945 
D) 2005

Question 16

Which of the following populations would be most likely to experience a J-shaped growth pattern?

Accepted Answer

A) all of the animals in the San Diego Zoo 
B) single-celled Paramecia without a constant food supply 
C) a founding colony of rats on a small island with abundant resources 
D) a beehive infected midsummer with a deadly bacterial disease 
A) all of the animals in the San Diego Zoo 
B) single-celled Paramecia without a constant food supply 
C) a founding colony of rats on a small island with abundant resources 
D) a beehive infected midsummer with a deadly bacterial disease

Question 17

Which of the following factors has probably contributed the least to declining fertility rates in China over the past 50 years?

Accepted Answer

A) declining infant mortality rates 
B) increasing food prices 
C) increasing cost of living spaces 
D) China's one-child policy 
A) declining infant mortality rates 
B) increasing food prices 
C) increasing cost of living spaces 
D) China's one-child policy

Question 18

Match each term to a statement listed below.
-unlimited growth of a population with no constraint on resources

Accepted Answer

A) population size 
B) population density 
C) carrying capacity 
D) logistic growth 
E) exponential growth 
A) population size 
B) population density 
C) carrying capacity 
D) logistic growth 
E) exponential growth

Question 19

Which of the following has the highest population density?

Accepted Answer

A) 1 grasshopper living in an area of 10 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) 1,500 oysters living in an area of 1,500 square meters 
A) 1 grasshopper living in an area of 10 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) 1,500 oysters living in an area of 1,500 square meters

Question 20

One measure of population growth is the period in which a population increases to twice its size. This is referred to as the ________ of the population.

Accepted Answer

The answer of One measure of population growth is the...

Exam 16: Growth of Populations

Which of the following has NOT been shown to be a consequence of China's one-child policy?

The definition of an area, relative to a population study,

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

This 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?

Which of the following would likely occur as a population reaches carrying capacity?

Explain why logistic growth curves have an "S" shape.

Use a specific example to explain how population density may change for people living in one country without any change in population size.

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

Is it reasonable to expect that all habitats suitable for a given organism will have the same carrying capacity for that organism?

Match each term to a statement listed below. -total number of individuals in a population within a given area

If we humans do not limit our population growth rate, we will exceed the ________ of our environment, leading to a larger population than the environment can support.

Which of the following statements does NOT explain why population density is often difficult to measure?

A population of 100 individuals has a doubling time of 25 years. What size will this population be in 100 years?

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

According to the figure shown, human populations began to experience exponential growth around

Which of the following populations would be most likely to experience a J-shaped growth pattern?

Which of the following factors has probably contributed the least to declining fertility rates in China over the past 50 years?

Match each term to a statement listed below. -unlimited growth of a population with no constraint on resources

Which of the following has the highest population density?

One measure of population growth is the period in which a population increases to twice its size. This is referred to as the ________ of the population.

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