Question 1

In a survivorship curve,a type III species,like most insects and plants,is a species that has

Accepted Answer

A)   an extremely long life span.
B)   an equal probability of dying at any age.
C)   the highest probability of dying at a very young age.
D)   a strong possibility of becoming extinct in a relatively short period of time.
E)   the highest probability of dying as it reaches its maximum life span.F) A) and C)
G) A) and B)

Question 2

When logistic growth is plotted over time,a J-shaped curve emerges.

Accepted Answer

A) True 
 B)False

Question 3

An example of a density-independent factor that affects a population's growth is

Accepted Answer

A)   frost killing all of your tomato plants.
B)   your tomato plants competing for water.
C)   All of the answer choices are correct.
D)   a fungus infecting your tomato plants.
E)   insects eating your tomato plants.F) A) and E)
G) D) and E)

Question 4

As a likely result of migrations on war vessels in World War II,a new predator was discovered,in the 1960s,on the island of _____,decimating local populations of birds and small reptiles.

Accepted Answer

A)   Guam
B)   Puerto Rico
C)   Madagascar
D)   Ceylon
E)   CubaF) A) and B)
G) None of the above

Question 5

The maximum number of individuals that a habitat can support indefinitely is the habitat's

Accepted Answer

A)   dispersion capacity.
B)   carrying capacity.
C)   density dispersion.
D)   growth capacity.
E)   environmental load.F) A) and E)
G) B) and E)

Question 6

Figuer:
The insets below show the age structures of India, the United States, and China.

-A population age structure diagram showing roughly equal numbers in each age group,such as shown above in inset b for the United States,depicts a

Accepted Answer

A)   declining population.
B)   stable population.
C)   very small population size.
D)   population facing extinction.
E)   growing population.F) B) and D)
G) B) and E)

Question 7

The combination of external factors that keep a population from reaching its maximum growth rate is

Accepted Answer

A)   population aging.
B)   environmental augmentation.
C)   population clumping.
D)   environmental resistance.
E)   environmental assuagement.F) A) and B)
G) C) and E)

Question 8

In a population growth curve that is affected by environmental resistance,the formula G = rN(K - N) /K is used to calculate the number of new individuals added after each time interval.In this equation K represents the

Accepted Answer

A)   number of individuals added per unit time.
B)   per capita rate of increase.
C)   environmental resistance.
D)   number of individuals at the start of a time interval.
E)   carrying capacity for the organism being studied.F) D) and E)
G) A) and B)

Question 9

In 2010 India had a population of 1,170,000,000,a birth rate of 0.027,and a death rate of 0.013.What was the per capita rate of India's population?

Accepted Answer

A)   0.027
B)   0.013
C)   0.040
D)   0.014
E)   0.001F) A) and D)
G) D) and E)

Question 10

In a survivorship curve,a type I species,like a human or elephant,is a species that has

Accepted Answer

A)   a strong possibility of becoming extinct in a relatively short period of time.
B)   an extremely short life span.
C)   an equal probability of dying at any age.
D)   the highest probability of dying as it reaches its maximum life span.
E)   the highest probability of dying at a very young age.F) C) and E)
G) A) and D)

Question 11

Which of the following best describes the link between population-limiting factors and r-selected species?

Accepted Answer

A)   Opportunistic species are limited by density-independent factors and have few offspring.
B)   Opportunistic species are limited by density-independent factors and have many offspring.
C)   Opportunistic species are limited by density-dependent factors and have many offspring.
D)   Opportunistic species are limited by density-dependent factors and have few offspring.E) A) and C)
F) A) and D)

Question 12

If a deer herd has a population of 1000,a carrying capacity of 2000,and an intrinsic rate of growth of 10% (0.1) ,what must be true of this deer population?

Accepted Answer

A)   births > deaths
B)   births 
C)   None of the answer choices are correct.
D)   births = deathsE) A) and C)
F) A) and B)

Question 13

Figuer:
Three population distribution patterns are shown in this figure.

-The type of population distribution in inset b is seen when individuals strongly repel one another,or defend distinct territories for resources,is _____ distribution.

Accepted Answer

A)   clumped
B)   forced
C)   uniform
D)   nonselected
E)   randomF) All of the above
G) D) and E)

Question 14

Graphed from 10,000 BCE to 2010,as shown below,the global human population

Accepted Answer

A)   has reached 0% growth rate, as shown by the data plot at 2010.
B)   shows the typical curve of logistic growth.
C)   is showing clearly that humans are at Earth's carrying capacity for our species.
D)   None of the answer choices are correct.
E)   shows the typical curve of exponential growth.F) B) and C)
G) A) and B)

Question 15

The difference between a population and a community in the same location is that

Accepted Answer

A)   a population includes all the living organisms, while a community is the physical location in which they live.
B)   a population includes members of one species, while a community includes multiple species populations.
C)   a community includes members of one species, while a population includes multiple species.
D)   a population includes members of one species, while a community includes its nonliving environmental resources.
E)   a community is an isolated subpopulation of a larger population of a species.F) A) and D)
G) C) and D)

Question 16

Emigration is the migration out of a particular area.

Accepted Answer

A) True 
 B)False

Question 17

How would the population equation G = rN be expressed in the full names of each abbreviated variable?

Accepted Answer

A)   logistic growth rate = per capita rate of increase x carrying capacity
B)   number of individuals added per unit time = per capita rate of increase x initial population size
C)   carrying capacity = environmental resistance x exponential growth rate
D)   rate of emigration = birth rate x initial population size
E)   None of the answer choices are correct.F) B) and D)
G) C) and D)

Question 18

What key conclusion did Riesch and Schlupp draw from the life history data of the Atlantic mollies?

Accepted Answer

A)   The populations are only able to survive and reproduce when in stressful environments of either darkness or H2S.
B)   More energy is invested in producing many more offspring when the populations live in environmentally stressful habitats.
C)   The populations exposed to H2S are able to use the toxic molecule for metabolic energy.
D)   Genetic regulation in the species result in production of equal sizes of offspring whether exposed to stressful environments or not.
E)   More energy is invested in producing larger offspring when the populations live in environmentally stressful habitats.F) A) and B)
G) None of the above

Question 19

A population with a large fraction of post-reproductive individuals is common in _____-developed countries; this population will most likely _____ in size.

Accepted Answer

A)   less; increase
B)   less; decrease
C)   more; increase
D)   more; decreaseE) A) and D)
F) A) and B)

Question 20

For a lady bug population at the end of summer,the food supply decreases to where only 2000 lady bugs can be supported per acre.If there are 1000 lady bugs in a one-acre field,the per capita rate of increase is 25%,and no immigration or emigration occur,how many individuals will be added in the next generation? Interpret whether G = rN(K - N) /K or G = rN is appropriate.

Accepted Answer

A)   250
B)   125
C)   1000
D)   1250
E)   0F) B) and C)
G) B) and D)

Exam 37: Population Ecology

Emigration is the migration out of a particular area.

Correct Answer
verified

In a population growth curve that is affected by environmental resistance,the formula G = rN(K - N) /K is used to calculate the number of new individuals added after each time interval.In this equation K represents the

Correct Answer
verified

When logistic growth is plotted over time,a J-shaped curve emerges.

Correct Answer
verified

As a likely result of migrations on war vessels in World War II,a new predator was discovered,in the 1960s,on the island of _____,decimating local populations of birds and small reptiles.

Correct Answer
verified

The maximum number of individuals that a habitat can support indefinitely is the habitat's

Correct Answer
verified

Graphed from 10,000 BCE to 2010,as shown below,the global human population

Correct Answer
verified

Figuer: Three population distribution patterns are shown in this figure. -The type of population distribution in inset b is seen when individuals strongly repel one another,or defend distinct territories for resources,is _____ distribution.

Correct Answer
verified

What key conclusion did Riesch and Schlupp draw from the life history data of the Atlantic mollies?

Correct Answer
verified

An example of a density-independent factor that affects a population's growth is

Correct Answer
verified

Which of the following best describes the link between population-limiting factors and r-selected species?

Correct Answer
verified

If a deer herd has a population of 1000,a carrying capacity of 2000,and an intrinsic rate of growth of 10% (0.1) ,what must be true of this deer population?

Correct Answer
verified

In a survivorship curve,a type III species,like most insects and plants,is a species that has

Correct Answer
verified

How would the population equation G = rN be expressed in the full names of each abbreviated variable?

Correct Answer
verified

In a survivorship curve,a type I species,like a human or elephant,is a species that has

Correct Answer
verified

In 2010 India had a population of 1,170,000,000,a birth rate of 0.027,and a death rate of 0.013.What was the per capita rate of India's population?

Correct Answer
verified

The combination of external factors that keep a population from reaching its maximum growth rate is

Correct Answer
verified

The difference between a population and a community in the same location is that

Correct Answer
verified

Correct Answer
verified

A population with a large fraction of post-reproductive individuals is common in _-developed countries; this population will most likely _ in size.

Correct Answer
verified

Figuer: The insets below show the age structures of India, the United States, and China. -A population age structure diagram showing roughly equal numbers in each age group,such as shown above in inset b for the United States,depicts a

Correct Answer
verified

Exam 37: Population Ecology

Emigration is the migration out of a particular area.

Correct AnswerverifiedShow Answer

In a population growth curve that is affected by environmental resistance,the formula G = rN(K - N) /K is used to calculate the number of new individuals added after each time interval.In this equation K represents the

Correct AnswerverifiedShow Answer

When logistic growth is plotted over time,a J-shaped curve emerges.

Correct AnswerverifiedShow Answer

As a likely result of migrations on war vessels in World War II,a new predator was discovered,in the 1960s,on the island of _____,decimating local populations of birds and small reptiles.

Correct AnswerverifiedShow Answer

The maximum number of individuals that a habitat can support indefinitely is the habitat's

Correct AnswerverifiedShow Answer

Graphed from 10,000 BCE to 2010,as shown below,the global human population

Correct AnswerverifiedShow Answer

Figuer: Three population distribution patterns are shown in this figure. -The type of population distribution in inset b is seen when individuals strongly repel one another,or defend distinct territories for resources,is _____ distribution.

Correct AnswerverifiedShow Answer

What key conclusion did Riesch and Schlupp draw from the life history data of the Atlantic mollies?

Correct AnswerverifiedShow Answer

An example of a density-independent factor that affects a population's growth is

Correct AnswerverifiedShow Answer

Which of the following best describes the link between population-limiting factors and r-selected species?

Correct AnswerverifiedShow Answer

If a deer herd has a population of 1000,a carrying capacity of 2000,and an intrinsic rate of growth of 10% (0.1) ,what must be true of this deer population?

Correct AnswerverifiedShow Answer

In a survivorship curve,a type III species,like most insects and plants,is a species that has

Correct AnswerverifiedShow Answer

How would the population equation G = rN be expressed in the full names of each abbreviated variable?

Correct AnswerverifiedShow Answer

In a survivorship curve,a type I species,like a human or elephant,is a species that has

Correct AnswerverifiedShow Answer

In 2010 India had a population of 1,170,000,000,a birth rate of 0.027,and a death rate of 0.013.What was the per capita rate of India's population?

Correct AnswerverifiedShow Answer

The combination of external factors that keep a population from reaching its maximum growth rate is

Correct AnswerverifiedShow Answer

The difference between a population and a community in the same location is that

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

A population with a large fraction of post-reproductive individuals is common in _____-developed countries; this population will most likely _____ in size.

Correct AnswerverifiedShow Answer

Figuer: The insets below show the age structures of India, the United States, and China. -A population age structure diagram showing roughly equal numbers in each age group,such as shown above in inset b for the United States,depicts a

Correct AnswerverifiedShow Answer

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A population with a large fraction of post-reproductive individuals is common in _-developed countries; this population will most likely _ in size.

Correct Answer
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Correct Answer
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