Question 1

The trade-off between investments in current reproduction and in growth that promotes future reproduction is referred to as the total cost of what?

Accepted Answer

A)  adaptation
B)  selection
C)  reproduction
D)  genetic changeE) A) and D)
F) All of the above

Question 2

Which of the following is an example of a species with r-selected adaptations?

Accepted Answer

A)  house fly
B)  blue whale
C)  gorilla
D)  horseE) B) and C)
F) A) and B)

Question 3

Populations of endotherms that live in colder climates tend to have shorter ears and limbs than populations of the same species in warm climates.This is called ____________ Rule.

Accepted Answer

A)  Allen's
B)  the K-Selected
C)  the r-Selected
D)  Edward'sE) All of the above
F) A) and B)

Question 4

Which of the following statements about the graph is true?

Accepted Answer

A)  Oysters live longer than Hydra.
B)  Hydra and humans have parallel life spans.
C)  Humans and oysters have similar life spans.
D)  Humans have low mortality rates early in life.E) B) and D)
F) A) and C)

Question 5

Clumped or patched populations that undergo local periodic extinction and recolonization are called what?

Accepted Answer

A)  randomly spaced populations
B)  uniformly spaced populations
C)  metapopulations
D)  over-sized populationsE) None of the above
F) A) and B)

Question 6

There are not many species of fish living deep in the oceans, but the deep-sea fish occasionally pulled up by fisherman have been bizarre creatures, such as the deep-sea anglerfish with its giant fangs and bioluminescent lure.Why have these fascinating deep-sea fish never been shown live on exhibit in an aquarium?

Accepted Answer

A)  Their diet is too specialized.
B)  They are adapted to cold temperatures and total darkness.
C)  They might frighten visitors.
D)  They are adapted for high pressure, and will die at low pressure. Clarify question:E) B) and C)
F) A) and B)

Question 7

You construct a life table for a plant species and find that in all cases about the same proportion of the cohort survive to the beginning of the next time interval.What would you call this?

Accepted Answer

A)  a Type I survivorship curve
B)  a Type II survivorship curve
C)  a Type III survivorship curve
D)  a semelparous life history adaptationE) A) and D)
F) A) and C)

Question 8

Under which condition will a population experience growth?

Accepted Answer

A)  when N equals K
B)  when N is less than K
C)  when dN/dt equals zero
D)  when r equals zeroE) B) and D)
F) B) and C)

Question 9

In the sigmoid growth curve, the carrying capacity of the environment is indicated by what symbol?

Accepted Answer

A)  ri
B)  N
C)  K
D)  dN/dtE) None of the above
F) B) and D)

Question 10

A small group of mice are released on an island without mice but with abundant food for mice and no predators.Initially, the growth of the mouse population will be limited mainly by what?

Accepted Answer

A)  the carrying capacity
B)  the biotic potential
C)  only density-dependent factors
D)  only density-independent factorsE) All of the above
F) None of the above

Question 11

Effects that are dependent on the size of the population and regulate the growth of populations are called ___________ effects.

Accepted Answer

A)  K-related
B)  density-independent
C)  environmental resistance
D)  density-dependentE) A) and B)
F) A) and C)

Question 12

The rate at which a population of a given species will increase when no limits are placed on its rate of growth is called its

Accepted Answer

A)  maximum growth.
B)  carrying capacity.
C)  biotic potential.
D)  optimal growth.E) B) and C)
F) A) and C)

Question 13

Demographic studies include all of the following except what?

Accepted Answer

A)  age structure
B)  growth rates
C)  mortality and survivorship curves
D)  sex ratio
E)  measurements of interspecific competitionF) A) and D)
G) All of the above

Question 14

A group of international students is having a heated discussion in the dining hall."Your country needs to get its population under control!" asserts a student from the United States."Perhaps," replies the Indian student, "but your country ______________________."

Accepted Answer

A)  has the highest per capita resource consumption, ten times greater than mine
B)  also has a big population overgrowth problem
C)  has a much higher birth rate
D)  has the lowest infant mortality rateE) All of the above
F) A) and C)

Question 15

Many times species are composed of networks of distinct populations called metapopulations.When do metapopulations occur?

Accepted Answer

A)  When a population is large and uniformly distributed.
B)  When a population in poor habitat continually sends out dispersers to bolster populations in better habitats.
C)  When a population in a better habitat does not send out colonizers into less suitable habitats.
D)  When suitable habitat is patchily distributed and separated by areas of unsuitable habitat.E) All of the above
F) None of the above

Question 16

There are three aspects of entire populations that are important and often studied.Select the best choice from the ones listed.

Accepted Answer

A)  a population's range, the pattern of spacing of individuals within the range, and the size that the population attains
B)  a population's range, the amount of food available within the range, and the size that the population attains
C)  a population's range, the parental care received by each offspring within the population, and the size that the population attains
D)  a population's range, the size home range of an individual in the population, and the parental care expended for each offspringE) B) and D)
F) C) and D)

Question 17

What are population pyramids used to show?

Accepted Answer

A)  death rates
B)  birth rates
C)  competition
D)  age composition of a populationE) C) and D)
F) A) and D)

Question 18

The statistical study of populations including sex ratio, age structure, and predicting growth rates is called _________.

Accepted Answer

A)  ethology
B)  demography
C)  population genetics
D)  biometricsE) B) and C)
F) A) and B)

Question 19

Which one of the following expressions from the logistic equation (dN/dt = rN ((K - N) /K)  represents the proportion of unused resources remaining for use by the population?

Accepted Answer

A)  the carrying capacity (K) 
B)  the population size (N) 
C)  the biotic potential (rN) 
D)  (K - N) /KE) None of the above
F) B) and C)

Question 20

The figure included shows the body temperature of lizards versus air temperature in two different habitats-open and shaded forest.Which one of the following conclusions is best supported by these data.

Accepted Answer

A)  Lizards are more active in open habitats.
B)  Lizards sunbathe more in open habitats.
C)  Lizards in shaded forest habitats eat more to maintain their temperature.
D)  The body temperature of lizards is more constant in open than in shaded forest habitats.E) B) and C)
F) A) and B)

Exam 55: Ecology of Individuals and Populations

Effects that are dependent on the size of the population and regulate the growth of populations are called ___________ effects.

Correct Answer
verified

The statistical study of populations including sex ratio, age structure, and predicting growth rates is called _________.

Correct Answer
verified

Which of the following is an example of a species with r-selected adaptations?

Correct Answer
verified

Which of the following statements about the graph is true?

Correct Answer
verified

Which one of the following expressions from the logistic equation (dN/dt = rN ((K - N) /K) represents the proportion of unused resources remaining for use by the population?

Correct Answer
verified

A small group of mice are released on an island without mice but with abundant food for mice and no predators.Initially, the growth of the mouse population will be limited mainly by what?

Correct Answer
verified

Under which condition will a population experience growth?

Correct Answer
verified

There are three aspects of entire populations that are important and often studied.Select the best choice from the ones listed.

Correct Answer
verified

Populations of endotherms that live in colder climates tend to have shorter ears and limbs than populations of the same species in warm climates.This is called ____________ Rule.

Correct Answer
verified

Correct Answer
verified

In the sigmoid growth curve, the carrying capacity of the environment is indicated by what symbol?

Correct Answer
verified

What are population pyramids used to show?

Correct Answer
verified

The trade-off between investments in current reproduction and in growth that promotes future reproduction is referred to as the total cost of what?

Correct Answer
verified

Clumped or patched populations that undergo local periodic extinction and recolonization are called what?

Correct Answer
verified

A group of international students is having a heated discussion in the dining hall."Your country needs to get its population under control!" asserts a student from the United States."Perhaps," replies the Indian student, "but your country ______________________."

Correct Answer
verified

You construct a life table for a plant species and find that in all cases about the same proportion of the cohort survive to the beginning of the next time interval.What would you call this?

Correct Answer
verified

The figure included shows the body temperature of lizards versus air temperature in two different habitats-open and shaded forest.Which one of the following conclusions is best supported by these data.

Correct Answer
verified

Demographic studies include all of the following except what?

Correct Answer
verified

Many times species are composed of networks of distinct populations called metapopulations.When do metapopulations occur?

Correct Answer
verified

The rate at which a population of a given species will increase when no limits are placed on its rate of growth is called its

Correct Answer
verified

Exam 55: Ecology of Individuals and Populations

Effects that are dependent on the size of the population and regulate the growth of populations are called ___________ effects.

Correct AnswerverifiedShow Answer

The statistical study of populations including sex ratio, age structure, and predicting growth rates is called _________.

Correct AnswerverifiedShow Answer

Which of the following is an example of a species with r-selected adaptations?

Correct AnswerverifiedShow Answer

Which of the following statements about the graph is true?

Correct AnswerverifiedShow Answer

Which one of the following expressions from the logistic equation (dN/dt = rN ((K - N) /K) represents the proportion of unused resources remaining for use by the population?

Correct AnswerverifiedShow Answer

A small group of mice are released on an island without mice but with abundant food for mice and no predators.Initially, the growth of the mouse population will be limited mainly by what?

Correct AnswerverifiedShow Answer

Under which condition will a population experience growth?

Correct AnswerverifiedShow Answer

There are three aspects of entire populations that are important and often studied.Select the best choice from the ones listed.

Correct AnswerverifiedShow Answer

Populations of endotherms that live in colder climates tend to have shorter ears and limbs than populations of the same species in warm climates.This is called ____________ Rule.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

In the sigmoid growth curve, the carrying capacity of the environment is indicated by what symbol?

Correct AnswerverifiedShow Answer

What are population pyramids used to show?

Correct AnswerverifiedShow Answer

The trade-off between investments in current reproduction and in growth that promotes future reproduction is referred to as the total cost of what?

Correct AnswerverifiedShow Answer

Clumped or patched populations that undergo local periodic extinction and recolonization are called what?

Correct AnswerverifiedShow Answer

A group of international students is having a heated discussion in the dining hall."Your country needs to get its population under control!" asserts a student from the United States."Perhaps," replies the Indian student, "but your country ______________________."

Correct AnswerverifiedShow Answer

You construct a life table for a plant species and find that in all cases about the same proportion of the cohort survive to the beginning of the next time interval.What would you call this?

Correct AnswerverifiedShow Answer

The figure included shows the body temperature of lizards versus air temperature in two different habitats-open and shaded forest.Which one of the following conclusions is best supported by these data.

Correct AnswerverifiedShow Answer

Demographic studies include all of the following except what?

Correct AnswerverifiedShow Answer

Many times species are composed of networks of distinct populations called metapopulations.When do metapopulations occur?

Correct AnswerverifiedShow Answer

The rate at which a population of a given species will increase when no limits are placed on its rate of growth is called its

Correct AnswerverifiedShow Answer

Correct Answer
verified

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