Question 1

In the population growth curve equation G = rN(K - N)/K,when N is very small relative to K,the population

Accepted Answer

A)  growth rate is low. 
B)  crashes. 
C)  growth rate is high. 
D)  growth rate stabilizes. 
E)  None of the answer choices are correct. 
A)  growth rate is low. 
B)  crashes. 
C)  growth rate is high. 
D)  growth rate stabilizes. 
E)  None of the answer choices are correct. C

Question 2

A J-shaped population growth curve indicates that

Accepted Answer

A)  the population size is approaching the carrying capacity for its resources. 
B)  resources for the population are unlimited. 
C)  the population is experiencing exponential growth. 
D)  the population is experiencing logistic growth. 
E)  the population has both unlimited resources and is experiencing exponential growth. 
A)  the population size is approaching the carrying capacity for its resources. 
B)  resources for the population are unlimited. 
C)  the population is experiencing exponential growth. 
D)  the population is experiencing logistic growth. 
E)  the population has both unlimited resources and is experiencing exponential growth. A

Question 3

The number of individuals that die in a population per unit time is its _____ rate.

Accepted Answer

A)  birth 
B)  expatriation 
C)  emigration 
D)  immigration 
E)  death 
A)  birth 
B)  expatriation 
C)  emigration 
D)  immigration 
E)  death E

Question 4

The movement of individuals into another population is termed

Accepted Answer

A)  expatriation. 
B)  emigration. 
C)  clumping. 
D)  immigration. 
E)  population dispersion. 
A)  expatriation. 
B)  emigration. 
C)  clumping. 
D)  immigration. 
E)  population dispersion.

Question 5

Conditions whose growth-limiting effects increase as a population grows are density-independent factors.

Accepted Answer

A) True 
 B)False

Question 6

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

Question 7

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

Accepted Answer

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

Question 8

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

Accepted Answer

A)  K-selected species are limited by density-dependent factors and have many offspring. 
B)  K-selected species are limited by density-independent 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 few offspring. 
A)  K-selected species are limited by density-dependent factors and have many offspring. 
B)  K-selected species are limited by density-independent 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 few offspring.

Question 9

On the island of Guam,a single type of nonnative organism,the black-footed ferret,is responsible for the disappearance of at least 12 species of birds and small reptiles from the island.

Accepted Answer

A) True 
 B)False

Question 10

Species with an opportunistic,or r-selected,life history strategy

Accepted Answer

A)  provide extensive care for their offspring. 
B)  produce many offspring. 
C)  are long-lived. 
D)  reproduce later in life. 
E)  are limited primarily by carrying capacity. 
A)  provide extensive care for their offspring. 
B)  produce many offspring. 
C)  are long-lived. 
D)  reproduce later in life. 
E)  are limited primarily by carrying capacity.

Question 11

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

-The type of population distribution seen,in inset a,when the habitat is relatively consistent and individuals do not strongly attract or repel one another is _____ distribution.

Accepted Answer

A)  nonselected 
B)  uniform 
C)  forced 
D)  random 
E)  clumped 
A)  nonselected 
B)  uniform 
C)  forced 
D)  random 
E)  clumped

Question 12

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

-The type of population distribution seen,in inset c,when only portions of a habitat are the most favorable is

Accepted Answer

A)  nonselected distribution. 
B)  random distribution. 
C)  uniform distribution. 
D)  clumped distribution. 
E)  forced distribution. 
A)  nonselected distribution. 
B)  random distribution. 
C)  uniform distribution. 
D)  clumped distribution. 
E)  forced distribution.

Question 13

A group of organisms of one species occupying a geographic location at the same time is a

Accepted Answer

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

Question 14

Predation of deer by wolves is an example of a

Accepted Answer

A)  density-dependent limit. 
B)  death-independent factor. 
C)  density-codependent limit. 
D)  death-dependent factor. 
E)  density-independent limit. 
A)  density-dependent limit. 
B)  death-independent factor. 
C)  density-codependent limit. 
D)  death-dependent factor. 
E)  density-independent limit.

Question 15

Two countries,_____ and _____,alone account for one-third of the human population.

Accepted Answer

A)  Russia; India 
B)  India; Brazil 
C)  China; Russia 
D)  China; India 
E)  Russia; Brazil 
A)  Russia; India 
B)  India; Brazil 
C)  China; Russia 
D)  China; India 
E)  Russia; Brazil

Question 16

The government of China offers financial incentives to encourage citizens to have children.

Accepted Answer

A) True 
 B)False

Question 17

The physical location in which an organism lives is termed its

Accepted Answer

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

Question 18

Researchers studying guppies in Trinidad found that guppies in streams with high predation reproduced earlier and more frequently.How would the scientists describe the selective force acting on the guppy population?

Accepted Answer

A)  density-dependent factors 
B)  K-selection 
C)  density-independent factors 
D)  r-selection 
E)  sexual selection 
A)  density-dependent factors 
B)  K-selection 
C)  density-independent factors 
D)  r-selection 
E)  sexual selection

Question 19

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 per capita rate of increase is 25%,and no immigration or emigration occurs,how many individuals will be added in the next generation? Discern whether G = rN(K - N)/K or G = rN applies appropriately.

Accepted Answer

A)  125 
B)  0 
C)  1250 
D)  1000 
E)  250 
A)  125 
B)  0 
C)  1250 
D)  1000 
E)  250

Question 20

Why have growth rates increased the most in developing countries in the past 50 years?

Accepted Answer

A)  Death rates have fallen slower than birth rates. 
B)  Death rates have gone up faster than birth rates. 
C)  Death rates have fallen faster than birth rates. 
D)  Death rates have gone up slower than birth rates. 
A)  Death rates have fallen slower than birth rates. 
B)  Death rates have gone up faster than birth rates. 
C)  Death rates have fallen faster than birth rates. 
D)  Death rates have gone up slower than birth rates.

Exam 37: Population Ecology

In the population growth curve equation G = rN(K - N)/K,when N is very small relative to K,the population

A J-shaped population growth curve indicates that

The number of individuals that die in a population per unit time is its _____ rate.

The movement of individuals into another population is termed

Conditions whose growth-limiting effects increase as a population grows are density-independent factors.

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?

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

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

On the island of Guam,a single type of nonnative organism,the black-footed ferret,is responsible for the disappearance of at least 12 species of birds and small reptiles from the island.

Species with an opportunistic,or r-selected,life history strategy

Figuer: Three population distribution patterns are shown in this figure. -The type of population distribution seen,in inset a,when the habitat is relatively consistent and individuals do not strongly attract or repel one another is _____ distribution.

Figuer: Three population distribution patterns are shown in this figure. -The type of population distribution seen,in inset c,when only portions of a habitat are the most favorable is

A group of organisms of one species occupying a geographic location at the same time is a

Predation of deer by wolves is an example of a

Two countries,_____ and _____,alone account for one-third of the human population.

The government of China offers financial incentives to encourage citizens to have children.

The physical location in which an organism lives is termed its

Researchers studying guppies in Trinidad found that guppies in streams with high predation reproduced earlier and more frequently.How would the scientists describe the selective force acting on the guppy population?

Why have growth rates increased the most in developing countries in the past 50 years?

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