Question 1

Exponential growth

Accepted Answer

A)   has three phases.
B)   results in accelerating growth.
C)   produces an S-shaped growth curve.
D)   requires limited resources.
E)   declines over time.F) B) and C)
G) C) and D)

Question 2

Which field of biology studies all aspects of biodiversity?

Accepted Answer

A)   conservation biology
B)   histology
C)   geology
D)   entomology
E)   environmental scienceF) C) and E)
G) B) and E)

Question 3

Which of the following is an example of a density-independent factor?

Accepted Answer

A)   parasite infection
B)   males fighting for access to females
C)   wolf packs in territory disputes
D)   spread of West Nile virus among chickadees
E)   flooding after heavy rainsF) A) and E)
G) B) and C) E

Question 4

All of the following are true about equilibrium populations except

Accepted Answer

A)   larger individuals.
B)   long time required to reach sexual maturity.
C)   production of few offspring.
D)   little or no parental care.
E)   long life span.F) A) and B)
G) B) and D)

Question 5

Jacob is studying a population of wrens in Michigan. During one severe winter, 5% of the birds died due to starvation and cold temperatures. Severe weather is an example of

Accepted Answer

A)   a density-independent factor.
B)   a negative growth rate.
C)   a density-dependent factor.
D)   an opportunistic population.
E)   logistic growth.F) A) and D)
G) C) and D)

Question 6

If the fishing village of Hopkins, Belize, is experiencing a decreasing population, what should they do if they wish to reverse this trend and see the greatest amount of population growth in the next 10 years?

Accepted Answer

A)   increase the number of individuals in the prereproductive stage
B)   increase the number of individuals in the postreproductive stage
C)   increase the number of individuals in the reproductive stage
D)   increase the amount of medical care available for its residents
E)   increase the economic opportunities for the members of the communityF) B) and E)
G) B) and D)

Question 7

Jacob is studying a population of wrens in Michigan. Over several years, he notices that the population always stabilizes at around 45 individuals. Which of the following is a possible explanation for Jacob's observation?

Accepted Answer

A)   population is at maximum density
B)   death rate is higher than birthrate
C)   exponential growth
D)   limited resources to support additional birds
E)   slow lag phaseF) B) and E)
G) A) and D) D

Question 8

If a population of 200 squirrels has a 10 percent growth rate each year, how many individuals will be born in the next year?

Accepted Answer

A)   2
B)   10
C)   20
D)   100
E)   200F) A) and B)
G) C) and E)

Question 9

In which of the following areas is human population growth the lowest?

Accepted Answer

A)   Africa
B)   North America
C)   Australia
D)   Europe
E)   South AmericaF) A) and E)
G) C) and D)

Question 10

In European countries such as Italy, people are delaying childbirth and/or choosing to have no childrenor only one child. Which of the following age structure diagrams illustrates this type of trend?

Accepted Answer

A)   increasing population
B)   decreasing population
C)   stable population
D)   This trend is not depicted in these diagrams.E) B) and D)
F) B) and C)

Question 11

When a population reaches the stable equilibrium phase, this is considered

Accepted Answer

A)   the carrying capacity of the environment.
B)   logarithmic growth.
C)   exponential growth.
D)   the minimum number of individuals that the environment can sustain.
E)   the slow growth stage.F) All of the above
G) C) and E)

Question 12

Emperor penguins defend an area around their nests. Their territory encompasses a complete circle around the nest with approximately a 0.5 m radius. If each nesting penguin has this same size and shape territory, what type of distribution will these animals exhibit?

Accepted Answer

A)   clumped
B)   random
C)   dense
D)   uniform
E)   independentF) B) and D)
G) A) and E)

Question 13

Which of the following statements is/are true about human population growth?

Accepted Answer

A)   the majority of the world's human population live in Asia.
B)   the Black Plague resulted in a decreased growth rate in the 1300s.
C)   changes during the Industrial Revolution led to a steep rise in the human population.
D)   human population densities tend to be highest along the coasts.
E)   All of the above statements are true.F) A) and E)
G) C) and D)

Question 14

During a recent hurricane, 25 individuals of the same butterfly species were blown onto a barrier island in southern Florida. During the first year, 80 caterpillars hatched from eggs laid by the butterflies and only 5 individuals in the population died. What is the growth rate for the population during this period?

Accepted Answer

A)   1%
B)   3%
C)   10%
D)   30%
E)   400%F) A) and D)
G) D) and E)

Question 15

Meghan is studying interactions between caribou and their wolf predators. This is an example of _____ ecology.

Accepted Answer

A)   population
B)   community
C)   ecosystem
D)   biosphere
E)   demographicF) A) and B)
G) All of the above

Question 16

Which of the following is an example of a density-dependent factor?

Accepted Answer

A)   parasite infection
B)   a wildfire
C)   a tornado
D)   flooding
E)   freezing temperaturesF) None of the above
G) A) and B)

Question 17

Jacob is studying a population of wrens in Michigan. Over several years, he notices that the population always stabilizes at around 45 individuals. Forty-five individuals is

Accepted Answer

A)   the density.
B)   the growth rate.
C)   a density-dependent factor.
D)   a density-independent factor.
E)   the carrying capacity.F) A) and B)
G) A) and C)

Question 18

Which of the following is true about the majority of less-developed countries (LDCs) ?

Accepted Answer

A)   They consume the most fossil fuels.
B)   They support the highest populations.
C)   They produce the most hazardous wastes.
D)   They have the largest environmental impact.
E)   They exhibit the highest per capita resource consumption.F) C) and D)
G) A) and C)

Question 19

Which of the following represents replacement reproduction?

Accepted Answer

A)   A couple has only one child.
B)   A couple has no children but each has two siblings.
C)   Each couple has only two children.
D)   A government policy limits the number of children per family.
E)   A couple has four children.F) A) and E)
G) A) and C)

Question 20

What is the greatest problem that the human population will face if we fail to have a greater understanding of ecology and environmental science?

Accepted Answer

A)   We will have a lack of understanding about the problems that the human population poses to the health of the biosphere.
B)   We will have a lack of understanding about the ability of the human population to obtain additional resources from the environment.
C)   We will not understand how to expand human society into currently uninhabited areas on the planet.
D)   The human population will start to decline in size.
E)   The human population will go extinct in the near future.F) A) and E)
G) D) and E) A

Exam 30: Ecology and Populations

Exponential growth

Correct Answer
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Which field of biology studies all aspects of biodiversity?

Correct Answer
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Which of the following is an example of a density-independent factor?

Correct Answer
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E

All of the following are true about equilibrium populations except

Correct Answer
verified

Jacob is studying a population of wrens in Michigan. During one severe winter, 5% of the birds died due to starvation and cold temperatures. Severe weather is an example of

Correct Answer
verified

If the fishing village of Hopkins, Belize, is experiencing a decreasing population, what should they do if they wish to reverse this trend and see the greatest amount of population growth in the next 10 years?

Correct Answer
verified

Jacob is studying a population of wrens in Michigan. Over several years, he notices that the population always stabilizes at around 45 individuals. Which of the following is a possible explanation for Jacob's observation?

Correct Answer
verified
D

If a population of 200 squirrels has a 10 percent growth rate each year, how many individuals will be born in the next year?

Correct Answer
verified

In which of the following areas is human population growth the lowest?

Correct Answer
verified

In European countries such as Italy, people are delaying childbirth and/or choosing to have no childrenor only one child. Which of the following age structure diagrams illustrates this type of trend?

Correct Answer
verified

When a population reaches the stable equilibrium phase, this is considered

Correct Answer
verified

Emperor penguins defend an area around their nests. Their territory encompasses a complete circle around the nest with approximately a 0.5 m radius. If each nesting penguin has this same size and shape territory, what type of distribution will these animals exhibit?

Correct Answer
verified

Which of the following statements is/are true about human population growth?

Correct Answer
verified

Correct Answer
verified

Meghan is studying interactions between caribou and their wolf predators. This is an example of _____ ecology.

Correct Answer
verified

Which of the following is an example of a density-dependent factor?

Correct Answer
verified

Jacob is studying a population of wrens in Michigan. Over several years, he notices that the population always stabilizes at around 45 individuals. Forty-five individuals is

Correct Answer
verified

Which of the following is true about the majority of less-developed countries (LDCs) ?

Correct Answer
verified

Which of the following represents replacement reproduction?

Correct Answer
verified

What is the greatest problem that the human population will face if we fail to have a greater understanding of ecology and environmental science?

Correct Answer
verified
A

Exam 30: Ecology and Populations

Exponential growth

Correct AnswerverifiedShow Answer

Which field of biology studies all aspects of biodiversity?

Correct AnswerverifiedShow Answer

Which of the following is an example of a density-independent factor?

Correct AnswerverifiedE

All of the following are true about equilibrium populations except

Correct AnswerverifiedShow Answer

Jacob is studying a population of wrens in Michigan. During one severe winter, 5% of the birds died due to starvation and cold temperatures. Severe weather is an example of

Correct AnswerverifiedShow Answer

If the fishing village of Hopkins, Belize, is experiencing a decreasing population, what should they do if they wish to reverse this trend and see the greatest amount of population growth in the next 10 years?

Correct AnswerverifiedShow Answer

Jacob is studying a population of wrens in Michigan. Over several years, he notices that the population always stabilizes at around 45 individuals. Which of the following is a possible explanation for Jacob's observation?

Correct AnswerverifiedD

If a population of 200 squirrels has a 10 percent growth rate each year, how many individuals will be born in the next year?

Correct AnswerverifiedShow Answer

In which of the following areas is human population growth the lowest?

Correct AnswerverifiedShow Answer

In European countries such as Italy, people are delaying childbirth and/or choosing to have no childrenor only one child. Which of the following age structure diagrams illustrates this type of trend?

Correct AnswerverifiedShow Answer

When a population reaches the stable equilibrium phase, this is considered

Correct AnswerverifiedShow Answer

Emperor penguins defend an area around their nests. Their territory encompasses a complete circle around the nest with approximately a 0.5 m radius. If each nesting penguin has this same size and shape territory, what type of distribution will these animals exhibit?

Correct AnswerverifiedShow Answer

Which of the following statements is/are true about human population growth?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Meghan is studying interactions between caribou and their wolf predators. This is an example of _____ ecology.

Correct AnswerverifiedShow Answer

Which of the following is an example of a density-dependent factor?

Correct AnswerverifiedShow Answer

Jacob is studying a population of wrens in Michigan. Over several years, he notices that the population always stabilizes at around 45 individuals. Forty-five individuals is

Correct AnswerverifiedShow Answer

Which of the following is true about the majority of less-developed countries (LDCs) ?

Correct AnswerverifiedShow Answer

Which of the following represents replacement reproduction?

Correct AnswerverifiedShow Answer

What is the greatest problem that the human population will face if we fail to have a greater understanding of ecology and environmental science?

Correct AnswerverifiedA

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E

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D

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A