Question 1

Introduction of the brown tree snake on Guam coincided with the disappearance of birds and small reptiles on the island.Which of the following lead to this decline?

Accepted Answer

A)  Competition for food with the snakes.
B)  Predation by the snakes.
C)  A side effect of poisons used to kill the snakes.
D)  Competition for nesting sites with the snakes.
E)  Habitat destruction that happened at the same time the snakes were introduced.F) B) and C)
G) All of the above

Question 2

In the equation G = rN that is used to study populations,"r" represents:

Accepted Answer

A)  The birth rate
B)  The death rate
C)  The number of individuals added per unit time
D)  The number of individuals at the start of the time interval
E)  The per capita rate of increaseF) B) and D)
G) C) and D)

Question 3

In the population growth equation G = rN,"N" is the number of individuals added per unit time.

Accepted Answer

A) True 
 B)False

Question 4

The number of new individuals produced per unit time in a population is its:

Accepted Answer

A)  Immigration rate
B)  Emigration rate
C)  Death rate
D)  Birth rate
E)  Expatriation rateF) All of the above
G) A) and C)

Question 5

If a deer herd has a population of 1000,a carrying capacity of 2000,and an intrinsic rate of growth of 10% (0.1) ,how much will the deer population grow in a year?

Accepted Answer

A)  100
B)  50
C)  10
D)  500
E)  1000F) All of the above
G) A) and C)

Question 6

The world's human population now exceeds 6.5 billion.

Accepted Answer

A) True 
 B)False

Question 7

For a lady bug population at the end of summer the food supply decreases to where only 2000 lady bugs can be supported per acre.If there are 1000 lady bugs in a one-acre field,the rate of growth is 25%,and no immigration or emigration occur,what will the population growth be in the next generation? G = rN(K-N) /K,G=rN.

Accepted Answer

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

Question 8

In the equation G = rN that is used to study populations,"G" represents:

Accepted Answer

A)  The number of individuals added per unit time
B)  The per capita rate of increase
C)  The birth rate
D)  The death rate
E)  The number of individuals at the start of the time intervalF) D) and E)
G) A) and E)

Question 9

Emigration is the migration out of a particular area.

Accepted Answer

A) True 
 B)False

Question 10

The type of population distribution seen when individuals strongly repel one another is:

Accepted Answer

A)  Clumped distribution
B)  Random distribution
C)  Non-selected distribution
D)  Uniform distribution
E)  Forced distributionF) A) and B)
G) B) and D)

Question 11

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

Accepted Answer

A) True 
 B)False

Question 12

An example of a density-independent factors 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 are correctF) C) and D)
G) B) and E)

Question 13

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

Accepted Answer

A) True 
 B)False

Question 14

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 dynamicsF) B) and C)
G) A) and D)

Question 15

The movement of individuals into a population is termed:

Accepted Answer

A)  Emigration
B)  Expatriation
C)  Immigration
D)  Population dispersion
E)  ClumpingF) B) and D)
G) B) and C)

Question 16

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 will 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 E)
G) A) and D)

Question 17

A male firefly uses flashes of light to attract mates.A female picking her mate based on these flashes leads to _________.

Accepted Answer

A)  Natural selection
B)  Artificial selection
C)  Disruptive selection
D)  Sexual selection
E)  Random selectionF) B) and E)
G) All of the above

Question 18

The brown tree snake in Guam had a ______of about 100 snakes per acre.

Accepted Answer

A)  Population density
B)  Population distribution
C)  Population
D)  Growth rate
E)  Death rateF) B) and C)
G) D) and E)

Question 19

In the equation G = rN that is used to study populations "N" represents:

Accepted Answer

A)  The per capita rate of increase
B)  The birth rate
C)  The death rate
D)  The number of individuals at the start of the time interval
E)  The number of individuals added per unit timeF) A) and E)
G) A) and D)

Question 20

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

Accepted Answer

A)  The longer the flash duration, the larger the size of the spermatophore
B)  The shorter the flash duration, the larger the size of the spermatophore
C)  The longer the flash duration, the smaller the size of the spermatophore
D)  There was no correlation between the flash duration and the size of the spermatophoreE) A) and C)
F) B) and C)

Exam 36: Populations

Correct Answer
verified

In the equation G = rN that is used to study populations,"G" represents:

Correct Answer
verified

Introduction of the brown tree snake on Guam coincided with the disappearance of birds and small reptiles on the island.Which of the following lead to this decline?

Correct Answer
verified

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

Correct Answer
verified

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

Correct Answer
verified

The world's human population now exceeds 6.5 billion.

Correct Answer
verified

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

Correct Answer
verified

In the population growth equation G = rN,"N" is the number of individuals added per unit time.

Correct Answer
verified

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 will the Indian population grow in 2010?

Correct Answer
verified

A male firefly uses flashes of light to attract mates.A female picking her mate based on these flashes leads to _________.

Correct Answer
verified

Emigration is the migration out of a particular area.

Correct Answer
verified

If a deer herd has a population of 1000,a carrying capacity of 2000,and an intrinsic rate of growth of 10% (0.1) ,how much will the deer population grow in a year?

Correct Answer
verified

The movement of individuals into a population is termed:

Correct Answer
verified

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

Correct Answer
verified

In the equation G = rN that is used to study populations "N" represents:

Correct Answer
verified

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

Correct Answer
verified

In the equation G = rN that is used to study populations,"r" represents:

Correct Answer
verified

The type of population distribution seen when individuals strongly repel one another is:

Correct Answer
verified

The number of new individuals produced per unit time in a population is its:

Correct Answer
verified

The brown tree snake in Guam had a ______of about 100 snakes per acre.

Correct Answer
verified

Exam 36: Populations

Correct AnswerverifiedShow Answer

In the equation G = rN that is used to study populations,"G" represents:

Correct AnswerverifiedShow Answer

Introduction of the brown tree snake on Guam coincided with the disappearance of birds and small reptiles on the island.Which of the following lead to this decline?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The world's human population now exceeds 6.5 billion.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

In the population growth equation G = rN,"N" is the number of individuals added per unit time.

Correct AnswerverifiedShow Answer

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 will the Indian population grow in 2010?

Correct AnswerverifiedShow Answer

A male firefly uses flashes of light to attract mates.A female picking her mate based on these flashes leads to _________.

Correct AnswerverifiedShow Answer

Emigration is the migration out of a particular area.

Correct AnswerverifiedShow Answer

If a deer herd has a population of 1000,a carrying capacity of 2000,and an intrinsic rate of growth of 10% (0.1) ,how much will the deer population grow in a year?

Correct AnswerverifiedShow Answer

The movement of individuals into a population is termed:

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

In the equation G = rN that is used to study populations "N" represents:

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

In the equation G = rN that is used to study populations,"r" represents:

Correct AnswerverifiedShow Answer

The type of population distribution seen when individuals strongly repel one another is:

Correct AnswerverifiedShow Answer

The number of new individuals produced per unit time in a population is its:

Correct AnswerverifiedShow Answer

The brown tree snake in Guam had a ______of about 100 snakes per acre.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified