Question 1

The carrying capacity for Paramecia caudatum as shown in this figure is

Accepted Answer

A) 12 days. 
B) 200/ml of medium. 
C) 100/ml of medium. 
D) 24 days. 
A) 12 days. 
B) 200/ml of medium. 
C) 100/ml of medium. 
D) 24 days.

Question 2

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

Accepted Answer

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

Question 3

Predation increases are responsible for density-________ changes in population size.

Accepted Answer

The answer of Predation increases are responsible for density-________ changes...

Question 4

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 5

The effects of pollution are generally considered to be density-independent because

Accepted Answer

A) the contamination level of any organism is unaffected by variations in population density. 
B) when food supplies become limited,the organisms are more likely to consume contaminated foods. 
C) at high densities the organisms are more likely to contact the pollutant. 
D) when the organisms are stressed by overcrowding,the pollutant becomes more toxic. 
A) the contamination level of any organism is unaffected by variations in population density. 
B) when food supplies become limited,the organisms are more likely to consume contaminated foods. 
C) at high densities the organisms are more likely to contact the pollutant. 
D) when the organisms are stressed by overcrowding,the pollutant becomes more toxic.

Question 6

Describe one negative consequence that has been linked to China's one-child policy,and explain how this consequence is impacting China.

Accepted Answer

Two impacts are a skewed sex ratio and a

Question 7

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 8

China's one-child policy was designed to reduce the population ________ in China.

Accepted Answer

The answer of China's one-child policy was designed to reduce...

Question 9

A population of 100 individuals is undergoing exponential growth with a constant growth rate of 0.2 per year.What size will this population be in 2 years?

Accepted Answer

A) 100 
B) 120 
C) 144 
D) 200 
A) 100 
B) 120 
C) 144 
D) 200

Question 10

Which of the following choices best explains why some introduced species experience an initial period of exponential growth when they first move from their native habitat into a new habitat?

Accepted Answer

A) They do not yet have any natural predators in their new habitat. 
B) Most introduced species show better survival in new habitats than in their old ones. 
C) Because most native species display exponential growth,many introduced species will do so also. 
D) Native species always leave open habitat types that a new species can inhabit. 
A) They do not yet have any natural predators in their new habitat. 
B) Most introduced species show better survival in new habitats than in their old ones. 
C) Because most native species display exponential growth,many introduced species will do so also. 
D) Native species always leave open habitat types that a new species can inhabit.

Question 11

A giant puffball mushroom is capable of producing and releasing trillions of spores.With this many spores produced,why do giant puffball mushrooms undergo logistic growth in established habitats?

Accepted Answer

A) Puffball mushrooms use chemicals to limit the number of spores that survive to ensure that adults have access to nutrients. 
B) The length of time for spore germination to occur is one factor that leads to logistic growth in all species. 
C) Limiting resources,such as food,water,and space control the maximum population size of all species. 
D) Mushrooms are biologically unique organisms that are incapable of experiencing exponential growth even in habitats with unlimited resources. 
A) Puffball mushrooms use chemicals to limit the number of spores that survive to ensure that adults have access to nutrients. 
B) The length of time for spore germination to occur is one factor that leads to logistic growth in all species. 
C) Limiting resources,such as food,water,and space control the maximum population size of all species. 
D) Mushrooms are biologically unique organisms that are incapable of experiencing exponential growth even in habitats with unlimited resources.

Question 12

A population will remain at a constant size when emigration equals immigration and

Accepted Answer

A) food is not a limiting factor. 
B) births equal deaths. 
C) predators leave the area. 
D) available space remains the same. 
A) food is not a limiting factor. 
B) births equal deaths. 
C) predators leave the area. 
D) available space remains the same.

Question 13

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 14

Explain whether a death rate increase from influenza is an example of a density-dependent population change or a density-independent population change.

Accepted Answer

Influenza is a disease and,lik

Question 15

Which of the following pieces of information would be most useful in determining whether a population is undergoing logistic growth versus exponential growth?

Accepted Answer

A) total population size taken during a current census 
B) population doubling time 
C) the carrying capacity for the same species in a different environment 
D) the shape of the growth curve for the population over time 
A) total population size taken during a current census 
B) population doubling time 
C) the carrying capacity for the same species in a different environment 
D) the shape of the growth curve for the population over time

Question 16

In what year did China implement the one-child policy?

Accepted Answer

A) 1949 
B) 1967 
C) 1978 
D) 1994 
A) 1949 
B) 1967 
C) 1978 
D) 1994

Question 17

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 18

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 19

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 20

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

The carrying capacity for Paramecia caudatum as shown in this figure is

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

Predation increases are responsible for density-________ changes in population size.

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

The effects of pollution are generally considered to be density-independent because

Describe one negative consequence that has been linked to China's one-child policy,and explain how this consequence is impacting China.

Which of the following has the highest population density?

China's one-child policy was designed to reduce the population ________ in China.

A population of 100 individuals is undergoing exponential growth with a constant growth rate of 0.2 per year.What size will this population be in 2 years?

Which of the following choices best explains why some introduced species experience an initial period of exponential growth when they first move from their native habitat into a new habitat?

A giant puffball mushroom is capable of producing and releasing trillions of spores.With this many spores produced,why do giant puffball mushrooms undergo logistic growth in established habitats?

A population will remain at a constant size when emigration equals immigration and

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

Explain whether a death rate increase from influenza is an example of a density-dependent population change or a density-independent population change.

Which of the following pieces of information would be most useful in determining whether a population is undergoing logistic growth versus exponential growth?

In what year did China implement the one-child policy?

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 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

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

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Exam 16: Growth of Populations

The carrying capacity for Paramecia caudatum as shown in this figure is

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

Predation increases are responsible for density-________ changes in population size.

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

The effects of pollution are generally considered to be density-independent because

Describe one negative consequence that has been linked to China's one-child policy,and explain how this consequence is impacting China.

Which of the following has the highest population density?

China's one-child policy was designed to reduce the population ________ in China.

A population of 100 individuals is undergoing exponential growth with a constant growth rate of 0.2 per year.What size will this population be in 2 years?

Which of the following choices best explains why some introduced species experience an initial period of exponential growth when they first move from their native habitat into a new habitat?

A giant puffball mushroom is capable of producing and releasing trillions of spores.With this many spores produced,why do giant puffball mushrooms undergo logistic growth in established habitats?

A population will remain at a constant size when emigration equals immigration and

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

Explain whether a death rate increase from influenza is an example of a density-dependent population change or a density-independent population change.

Which of the following pieces of information would be most useful in determining whether a population is undergoing logistic growth versus exponential growth?

In what year did China implement the one-child policy?

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 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

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

The Nature of Science

Chemistry of Life

Life Is Cellular

How Cells Work

Cell Division

Patterns of Inheritance

Chromosomes and Human Genetics

What Genes Are

How Genes Work

Evidence for Evolution

Mechanisms of Evolution

Adaptation and Species

The History of Life

Human Evolution

General Principles of Ecology

Communities of Organisms

Ecosystems

Applying the Science

Filters