Question 1

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

Accepted Answer

A)  Has an equal probability of dying at any age
B)  Has a strong possibility of becoming extinct in a relatively short period of time
C)  Has the highest probability of dying at a very young age
D)  Has the highest probability of dying as it reaches its maximum life span
E)  Has an extremely long life spanF) A) and C)
G) None of the above

Question 2

In regards to a species life history,r-selected species:

Accepted Answer

A)  Are long lived
B)  Provide extensive care for their offspring
C)  Are limited primarily by carrying capacity
D)  Reproduce later in life
E)  Produce many offspringF) A) and C)
G) C) and D)

Question 3

Which of the following best describes the link between survivorship curves and K-selected species?

Accepted Answer

A)  K-selected species are limited by density-independent factors and have few offspring
B)  K-selected species are limited by density-dependent factors and have many offspring
C)  K-selected species are limited by density-dependent factors and have few offspring
D)  K-selected species are limited by density-independent factors and have many offspringE) B) and D)
F) C) and D)

Question 4

All of the organisms in a given location or area is termed a:

Accepted Answer

A)  Peer group
B)  Flock
C)  Community
D)  Population
E)  HerdF) None of the above
G) A) and B)

Question 5

The example of what happened to the reindeer population in 1964 that had been previously introduced to St.Matthew Island in the Bering Sea represents what is referred to as a population boom.

Accepted Answer

A) True 
 B)False

Question 6

For a lady bug population at the beginning of summer the food supply and habitat are almost limitless.If there are 1000 lady bugs in a one acre field,the rate of growth is 25%,and no immigration or emigration occurs,what will the population growth be in the next generation? G = rN(K-N) /K,G=rN.

Accepted Answer

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

Question 7

Fireflies identifying members of the same species by the duration of their flashes would be most important in which of the following?

Accepted Answer

A)  Allopatric speciation
B)  Parapatric speciation
C)  Autopatric speciation
D)  Sympatric speciation
E)  GradualismF) C) and D)
G) All of the above

Question 8

In a population the difference between the birth rate and the death rate is termed the:

Accepted Answer

A)  Population density determining factor
B)  Population dispersion factor
C)  J-shaped population curve
D)  S-shaped population curve
E)  Per capita rate of increaseF) A) and B)
G) None of the above E

Question 9

-What correlation did the scientists observe in Figure 36.20b?

Accepted Answer

A)  Females preferred males who flashed for 80 msec
B)  Females preferred males who flashed for 132 msec
C)  Females preferred males who flashed for 108 msec
D)  Females did not show any preference based on flash durationE) A) and D)
F) B) and C)

Question 10

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

Accepted Answer

A)  Density dispersion
B)  Carrying capacity
C)  Growth capacity
D)  Environmental load
E)  Dispersion capacityF) A) and B)
G) A) and E) B

Question 11

The study of the factors that influence changes in a population's size is:

Accepted Answer

A)  Population density
B)  Population dynamics
C)  Population geology
D)  Population ethology
E)  Population dispersionF) A) and B)
G) C) and D) B

Question 12

Two countries,_________________ and __________________,alone account for one third of the human population.

Accepted Answer

A)  Russia, Brazil
B)  China, Russia
C)  China, India
D)  India, Brazil
E)  Russia, IndiaF) A) and C)
G) A) and E)

Question 13

A firefly flashing a light to attract a mate may also attract predators.The observation that animals take this risk to find a mate is consistent with which definition of natural selection?

Accepted Answer

A)  Reproduction of the fittest
B)  Survival of the fittest
C)  Longevity of the fittest
D)  Survival of the largest
E)  Reproduction of the largestF) All of the above
G) C) and D)

Question 14

A population with a large fraction of pre-reproductive individuals:

Accepted Answer

A)  Is common in less-developed countries and will most likely increase in size
B)  Is common in more-developed countries and will most likely increase in size
C)  Is common in less-developed countries and will most likely decrease in size
D)  Is common in more-developed countries and will most likely decrease in sizeE) All of the above
F) A) and B)

Question 15

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

Accepted Answer

A)  Population aging
B)  Environmental resistance
C)  Environmental assuagement
D)  Population clumping
E)  Environmental augmentationF) A) and B)
G) A) and C)

Question 16

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

Accepted Answer

A) True 
 B)False

Question 17

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)  Environmental resistance
B)  Per capita rate of increase
C)  The number of individuals added per unit time
D)  The carrying capacity for the organism being studied
E)  The number of individuals at the start of a time intervalF) B) and E)
G) C) and E)

Question 18

Why are the leading causes of death in high-income countries heart disease,stroke,and cancer,while in low-income countries infectious diseases are the leading causes of death?

Accepted Answer

A)  Because life expectancy in high-income countries is longer
B)  Because the ecological footprint in high-income countries is larger
C)  Because the population density in high-income countries is larger
D)  Because the population density in high-income countries is clustered
E)  Because of genetic differences between populationsF) A) and E)
G) A) and B)

Question 19

A country's ecological footprint can be calculated by multiplying its population size by the footprint of each individual.Why are some ecologists concerned about the ecological footprint of a country like India?

Accepted Answer

A)  Because its population is increasing
B)  Because its standard of living is increasing
C)  Because both its population and standard of living are increasing
D)  Because its population and land area are increasing
E)  Because its standard of living and land area are increasingF) A) and D)
G) None of the above

Question 20

The movement of individuals out of a population is termed:

Accepted Answer

A)  Immigration
B)  Extrapolation
C)  Population dispersion
D)  Clumping
E)  EmigrationF) A) and B)
G) B) and E)

Exam 36: Populations

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

Correct AnswerverifiedShow Answer

In regards to a species life history,r-selected species:

Correct AnswerverifiedShow Answer

Which of the following best describes the link between survivorship curves and K-selected species?

Correct AnswerverifiedShow Answer

All of the organisms in a given location or area is termed a:

Correct AnswerverifiedShow Answer

The example of what happened to the reindeer population in 1964 that had been previously introduced to St.Matthew Island in the Bering Sea represents what is referred to as a population boom.

Correct AnswerverifiedShow Answer

For a lady bug population at the beginning of summer the food supply and habitat are almost limitless.If there are 1000 lady bugs in a one acre field,the rate of growth is 25%,and no immigration or emigration occurs,what will the population growth be in the next generation? G = rN(K-N) /K,G=rN.

Correct AnswerverifiedShow Answer

Fireflies identifying members of the same species by the duration of their flashes would be most important in which of the following?

Correct AnswerverifiedShow Answer

In a population the difference between the birth rate and the death rate is termed the:

Correct AnswerverifiedE

-What correlation did the scientists observe in Figure 36.20b?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedB

The study of the factors that influence changes in a population's size is:

Correct AnswerverifiedB

Two countries,_________________ and __________________,alone account for one third of the human population.

Correct AnswerverifiedShow Answer

A firefly flashing a light to attract a mate may also attract predators.The observation that animals take this risk to find a mate is consistent with which definition of natural selection?

Correct AnswerverifiedShow Answer

A population with a large fraction of pre-reproductive individuals:

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

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

Why are the leading causes of death in high-income countries heart disease,stroke,and cancer,while in low-income countries infectious diseases are the leading causes of death?

Correct AnswerverifiedShow Answer

A country's ecological footprint can be calculated by multiplying its population size by the footprint of each individual.Why are some ecologists concerned about the ecological footprint of a country like India?

Correct AnswerverifiedShow Answer

The movement of individuals out of a population is termed:

Correct AnswerverifiedShow Answer

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E

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B

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B

Two countries,_ and __,alone account for one third of the human population.

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