Question 1

Which of these is the best way to control population growth rate in LDCs?

Accepted Answer

A)  A good family planning program can help the growth rate decline even if the country is not yet industrialized
B)  The less developed countries will always have a high growth rate with no accompanying problems so there is no need to do anything
C)  The growth rate will decline only when the less developed countries are industrialized as much as the more developed countries
D)  The less developed countries already have a low growth rate so there is no need to do anything
E)  The growth rate of more developed countries contributes more to world population growth so we don't need to do anything with the population growth in LDCsF) B) and E)
G) A) and B)

Question 2

Which of the following describes a type II survivorship curve (drawn by plotting the number of individuals in a given population alive at the beginning of each interval) ?

Accepted Answer

A)  Most individuals die during their reproductive years
B)  Most individuals die early in life and of old age
C)  Many individuals die early in life
D)  Most individuals die of old age
E)  Individuals die at a constant rate throughout timeF) C) and D)
G) B) and E)

Question 3

A biologist is studying organisms which tend to exhibit a type I survivorship curve.Based on this information you would conclude that he or she is studying which type of organism?

Accepted Answer

A)  Oysters
B)  Large mammals
C)  Hydras
D)  Insects
E)  BacteriaF) All of the above
G) A) and E)

Question 4

A number of populations of different species interacting with one another is called:

Accepted Answer

A)  Symbiosis
B)  An ecosystem
C)  Predation
D)  Competition
E)  A communityF) A) and B)
G) B) and D)

Question 5

Consider that a species of salmon lays 20,000 eggs per pair when it spawns and dies.At the end of five years,an average of one pair of mature salmon from this group of hatched eggs returns again to spawn in the parent stream (19,998 have died) .What is the per capita rate of increase?

Accepted Answer

A)  Zero,because there is exact replacement of the previous generation
B)  10,000,because there were that many eggs produced per parent fish (r) 
C)  2,000,because this must be divided by five years
D)  -2,000,because there was this much average die-off per year
E)  -19,998,because there was this much total lossF) All of the above
G) C) and E)

Question 6

A biologist is studying a type of species which exhibits logistic population growth.Based on this information you would conclude that he or she is studying which type of species?

Accepted Answer

A)  Density-dependent species
B)  Opportunistic species
C)  Equilibrium species
D)  Density-independent species
E)  Biotic speciesF) A) and E)
G) C) and D)

Question 7

Which of the following is not a factor which affects biotic potential?

Accepted Answer

A)  Age at which reproduction begins
B)  How many different mates each individual has
C)  Changes of survival until age of reproduction
D)  Usual number of offspring per reproduction
E)  How often each individual reproducesF) All of the above
G) A) and E)

Question 8

A biologist is counting the number of individuals of a population per unit area.She is trying to determine the

Accepted Answer

A)  Population frequency
B)  Population density
C)  Population capacity
D)  Population distribution
E)  Population potentialF) C) and D)
G) All of the above

Question 9

The invention of modern medicine has enabled the human population to grow exponentially.

Accepted Answer

A) True 
 B)False

Question 10

The term used to describe population members that are the same age and have the same chances of surviving is:

Accepted Answer

A)  A family
B)  A metapopulation
C)  Biotic potential
D)  A cohort
E)  A populationF) A) and C)
G) A) and B)

Question 11

Which of the following would not be considered a density-dependent factor controlling population size?

Accepted Answer

A)  Drought
B)  Predation
C)  Parasites
D)  Disease
E)  CompetitionF) B) and E)
G) B) and D)

Question 12

Ecology is best defined as the study of:

Accepted Answer

A)  Organisms as they interact with other organisms and their physical surrounding
B)  Population increases and decreases
C)  How populations are restricted by environmental resistance
D)  Populations
E)  The rate of population changeF) A) and C)
G) A) and D)

Question 13

Which of the following statements accurately describes the less developed countries?

Accepted Answer

A)  Low growth rate,different age groups of equal size
B)  High birthrate,large postreproductive portion of the population
C)  High birthrate,different age groups of equal size
D)  High birthrate,large prereproductive portion of the population
E)  Low birthrate,large reproductive portion of the populationF) None of the above
G) A) and E)

Question 14

If you were studying the phases of the logistic curve,which of the following would not be included in your studies?

Accepted Answer

A)  The lag phase
B)  The deceleration phase
C)  The biotic potential phase
D)  The exponential growth phase
E)  The stable equilibrium phaseF) B) and E)
G) None of the above

Question 15

-This figure shows a logistic growth curve.What does "E" represent?

Accepted Answer

A)  The deceleration phase
B)  The lag phase
C)  The exponential growth phase
D)  Stable equilibrium phase
E)  The carrying capacity phaseF) B) and E)
G) A) and B)

Question 16

If you were writing a paper on the relatively thin layer on the earth's surface where life is possible,your paper would be titled:

Accepted Answer

A)  The lithosphere
B)  A biopreserve
C)  The biosphere
D)  A biome
E)  The ecosystemF) All of the above
G) A) and D)

Exam 37: Population Ecology

Ecology is best defined as the study of:

Correct Answer
verified

Which of these is the best way to control population growth rate in LDCs?

Correct Answer
verified

Consider that a species of salmon lays 20,000 eggs per pair when it spawns and dies.At the end of five years,an average of one pair of mature salmon from this group of hatched eggs returns again to spawn in the parent stream (19,998 have died) .What is the per capita rate of increase?

Correct Answer
verified

A biologist is studying a type of species which exhibits logistic population growth.Based on this information you would conclude that he or she is studying which type of species?

Correct Answer
verified

If you were studying the phases of the logistic curve,which of the following would not be included in your studies?

Correct Answer
verified

A biologist is studying organisms which tend to exhibit a type I survivorship curve.Based on this information you would conclude that he or she is studying which type of organism?

Correct Answer
verified

Which of the following statements accurately describes the less developed countries?

Correct Answer
verified

Which of the following is not a factor which affects biotic potential?

Correct Answer
verified

-This figure shows a logistic growth curve.What does "E" represent?

Correct Answer
verified

A number of populations of different species interacting with one another is called:

Correct Answer
verified

Which of the following describes a type II survivorship curve (drawn by plotting the number of individuals in a given population alive at the beginning of each interval) ?

Correct Answer
verified

If you were writing a paper on the relatively thin layer on the earth's surface where life is possible,your paper would be titled:

Correct Answer
verified

A biologist is counting the number of individuals of a population per unit area.She is trying to determine the

Correct Answer
verified

The invention of modern medicine has enabled the human population to grow exponentially.

Correct Answer
verified

Which of the following would not be considered a density-dependent factor controlling population size?

Correct Answer
verified

The term used to describe population members that are the same age and have the same chances of surviving is:

Correct Answer
verified

Exam 37: Population Ecology

Ecology is best defined as the study of:

Correct AnswerverifiedShow Answer

Which of these is the best way to control population growth rate in LDCs?

Correct AnswerverifiedShow Answer

Consider that a species of salmon lays 20,000 eggs per pair when it spawns and dies.At the end of five years,an average of one pair of mature salmon from this group of hatched eggs returns again to spawn in the parent stream (19,998 have died) .What is the per capita rate of increase?

Correct AnswerverifiedShow Answer

A biologist is studying a type of species which exhibits logistic population growth.Based on this information you would conclude that he or she is studying which type of species?

Correct AnswerverifiedShow Answer

If you were studying the phases of the logistic curve,which of the following would not be included in your studies?

Correct AnswerverifiedShow Answer

A biologist is studying organisms which tend to exhibit a type I survivorship curve.Based on this information you would conclude that he or she is studying which type of organism?

Correct AnswerverifiedShow Answer

Which of the following statements accurately describes the less developed countries?

Correct AnswerverifiedShow Answer

Which of the following is not a factor which affects biotic potential?

Correct AnswerverifiedShow Answer

-This figure shows a logistic growth curve.What does "E" represent?

Correct AnswerverifiedShow Answer

A number of populations of different species interacting with one another is called:

Correct AnswerverifiedShow Answer

Which of the following describes a type II survivorship curve (drawn by plotting the number of individuals in a given population alive at the beginning of each interval) ?

Correct AnswerverifiedShow Answer

If you were writing a paper on the relatively thin layer on the earth's surface where life is possible,your paper would be titled:

Correct AnswerverifiedShow Answer

A biologist is counting the number of individuals of a population per unit area.She is trying to determine the

Correct AnswerverifiedShow Answer

The invention of modern medicine has enabled the human population to grow exponentially.

Correct AnswerverifiedShow Answer

Which of the following would not be considered a density-dependent factor controlling population size?

Correct AnswerverifiedShow Answer

The term used to describe population members that are the same age and have the same chances of surviving is:

Correct AnswerverifiedShow Answer

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