Question 1

In a survivorship curve,a type II species,like a song bird,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 as it reaches its maximum life span.
D)  has an extremely short life span.
E)  has the highest probability of dying at a very young agE.F) A) and B)
G) D) and E)

Question 2

In regards to a species' life history,opportunistic 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 offspring.F) None of the above
G) All of the above

Question 3

Predation of deer by wolves is an example of a

Accepted Answer

A)  density-independent limit.
B)  density-codependent limit.
C)  density-dependent limit.
D)  death-dependent factor.
E)  death-independent factor.F) A) and D)
G) None of the above

Question 4

A population age structure diagram depicting an equal number of individuals in each age group suggests that the population is

Accepted Answer

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

Question 5

The study of the relationships among organisms and the environment is

Accepted Answer

A)  ethology.
B)  habitology.
C)  ergonomics.
D)  ecology.
E)  geology.F) A) and E)
G) D) and E)

Question 6

The number of individuals of a species per unit area or volume of habitat is

Accepted Answer

A)  carrying capacity.
B)  population density.
C)  a community.
D)  population distribution.
E)  population dynamics.F) A) and B)
G) None of the above

Question 7

Which of the following is NOT within the study of ecology?

Accepted Answer

A)  spread of disease
B)  predator-prey relationships
C)  invasive plant species
D)  bonds of DNA
E)  land managementF) All of the above
G) B) and E)

Question 8

A human population with a large percentage of post-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 more-developed countries and will most likely decrease in size.
D)  is common in less-developed countries and will most likely decrease in size.E) A) and D)
F) All of the above

Question 9

In regards to a species' life history,equilibrium species

Accepted Answer

A)  have only a few offspring.
B)  are short lived.
C)  reproduce at an early age.
D)  have a large number of offspring.
E)  give very little care to their offspring.F) C) and E)
G) A) and B)

Question 10

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

Accepted Answer

A)  insects eating your tomato plants.
B)  your tomato plants competing for water.
C)  a fungus infecting your tomato plants.
D)  frost killing all of your tomato plants.
E)  All answers are correct.F) None of the above
G) A) and B)

Question 11

In 2010,India had a population of 1,170,000,000,a birth rate of 0.027,and a death rate of 0.013.Approximately how much did the Indian population grow in 2010?

Accepted Answer

A)  170,000,000
B)  1,700,000
C)  170,000
D)  17,000,000
E)  17,000F) A) and C)
G) C) and D)

Question 12

Based upon the age structure diagram,you expect the Indian population to

Accepted Answer

A)  shrink.
B)  stay constant.
C)  grow and then stabilize.
D)  grow exponentially.E) B) and D)
F) None of the above

Question 13

In the section "Investigating Life: Let Your Love Light Shine",how did the scientists obtain the different frequencies of flashes part b of the figure?

Accepted Answer

A)  They trained male fireflies to flash for a given duration.
B)  They electrically stimulated male fireflies to flash for a given duration.
C)  They made an artificial male firefly.
D)  They played videotapes of fireflies flashing for a given duration.E) B) and C)
F) None of the above

Question 14

The physical location where an organism lives is termed its

Accepted Answer

A)  home boundary.
B)  range.
C)  habitat.
D)  community.
E)  ecosystem.F) A) and B)
G) A) and E)

Question 15

In the section "Investigating Life: Let Your Love Light Shine",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) A) and D)
G) C) and D)

Question 16

In the section "Investigating Life: Let Your Love Light Shine",what hypothesis did the scientists test?

Accepted Answer

A)  The frequency of a male's flashes indicates how healthy he is.
B)  A male's flashes correlates with the number of sperm he produces.
C)  Females reject males who present them small spermatophores.
D)  Females cannot determine the size of a male's spermatophore before mating.
E)  A male's flashes correlate with the size of his spermatophorE.F) A) and B)
G) A) and C)

Question 17

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 span.F) A) and D)
G) B) and D)

Question 18

A human population with a large percentage 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 size.E) All of the above
F) A) and D)

Question 19

The United Nations has estimated (for the high estimate)that the world's human population may reach about 10.5 billion by the year 2050 and will continue to increase.

Accepted Answer

A) True 
 B)False

Question 20

All of the organisms in a given location or area are termed a

Accepted Answer

A)  peer group.
B)  flock.
C)  community.
D)  population.
E)  herd.F) A) and E)
G) C) and D)

Exam 18: Population Ecology

In 2010,India had a population of 1,170,000,000,a birth rate of 0.027,and a death rate of 0.013.Approximately how much did the Indian population grow in 2010?

Correct AnswerverifiedShow Answer

The study of the relationships among organisms and the environment is

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Predation of deer by wolves is an example of a

Correct AnswerverifiedShow Answer

A population age structure diagram depicting an equal number of individuals in each age group suggests that the population is

Correct AnswerverifiedShow Answer

The number of individuals of a species per unit area or volume of habitat is

Correct AnswerverifiedShow Answer

In a survivorship curve,a type II species,like a song bird,is a species that

Correct AnswerverifiedShow Answer

Based upon the age structure diagram,you expect the Indian population to

Correct AnswerverifiedShow Answer

The United Nations has estimated (for the high estimate)that the world's human population may reach about 10.5 billion by the year 2050 and will continue to increase.

Correct AnswerverifiedShow Answer

In the section "Investigating Life: Let Your Love Light Shine",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

The physical location where an organism lives is termed its

Correct AnswerverifiedShow Answer

All of the organisms in a given location or area are termed a

Correct AnswerverifiedShow Answer

In regards to a species' life history,opportunistic species

Correct AnswerverifiedShow Answer

A human population with a large percentage of pre-reproductive individuals

Correct AnswerverifiedShow Answer

A human population with a large percentage of post-reproductive individuals

Correct AnswerverifiedShow Answer

In regards to a species' life history,equilibrium species

Correct AnswerverifiedShow Answer

In the section "Investigating Life: Let Your Love Light Shine",what hypothesis did the scientists test?

Correct AnswerverifiedShow Answer

In the section "Investigating Life: Let Your Love Light Shine",how did the scientists obtain the different frequencies of flashes part b of the figure?

Correct AnswerverifiedShow Answer

Which of the following is NOT within the study of ecology?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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