Question 1

All of the following are true about human population growth EXCEPT

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 lead to a steep rise in the human population.
D)   we will reach the Earth's carrying capacity within the next 20 years.
E)   human population densities tend to be highest along the coasts.F) None of the above
G) C) and E)

Question 2

During a recent hurricane, 25 individuals of the same butterfly species were blown onto a barrier island in southern Florida. In general, each female butterfly lays more than 50 eggs each year, but only a few individuals survive for more than a month after hatching from the eggs. What type of survivorship curve most accurately represents this species?

Accepted Answer

A)   Type I
B)   Type II
C)   Type III
D)   Type IV
E)   Type VF) A) and E)
G) B) and E)

Question 3

What is an organism's biotic potential?

Accepted Answer

A)   The rate at which the population grows.
B)   The number of offspring that an organism produces over its entire lifespan.
C)   The age at which an organism reaches sexual maturity.
D)   The number of individuals in the prereproductive stage.
E)   The maximum rate of population growth with unlimited resources.F) All of the above
G) C) and D) E

Question 4

Which of the following represents replacement reproduction.

Accepted Answer

A)   A couple has only 1 child.
B)   A couple has no children but each has two siblings.
C)   Each couple has only 2 children.
D)   A government policy that limits the number of children per family.
E)   A couple with 4 children.F) All of the above
G) B) and C)

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. This 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) C) and D)
G) A) and C)

Question 6

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) All of the above

Question 7

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

Accepted Answer

A)   parasitism
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 B)
G) None of the above

Question 8

Which of the following is true about populations with a negative growth rate?

Accepted Answer

A)   The death rate exceeds the birth rate.
B)   The population will remain the same size for several generations.
C)   The age structure diagram looks like a pyramid.
D)   The population has reached its carrying capacity.
E)   The majority of the population is prereproductive.F) A) and C)
G) A) and E)

Question 9

In European countries such as Italy, people are delaying childbirth and or choosing to have only 1 or no children. 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 diagramsE) B) and C)
F) C) and D) B

Question 10

Which of the following descriptions is NOT associated with the correct survivorship curve?

Accepted Answer

A)   Black bear females usually produce just one cub. The cub nurses from the female for several months and can remain with the mother for up to 2 years. - Type I
B)   Each spring an oak tree drops thousands of seeds but only a few will ever reach sexual maturity. - Type III
C)   Daphnia produce offspring every 3 weeks. One Daphnia produces 8 young and after 1.5 weeks 4 of these individuals are still alive. - Type II
D)   Bald eagles return to the same mates and nests each year. They typically have 2-3 eggs and with parental care provided by both parents, the survival rate of the chicks is high. - Type II
E)   As adults, female leatherback sea turtles return to the beaches where they hatched to lay their own brood. One female produces approximately 600 eggs, but at least 400 of these will be eaten before they ever reach the ocean. - Type IF) C) and E)
G) B) and D)

Question 11

During a recent hurricane, 25 individuals of the same butterfly species were blown onto a barrier island in southern Florida. The hurricane which lead to the arrival of the butterflies on the island is an example of a(n)  ________ factor.

Accepted Answer

A)   clumped
B)   random
C)   density-dependent
D)   density-independent
E)   dispersedF) C) and D)
G) A) and E)

Question 12

During a recent hurricane, 25 individuals of the same butterfly species were blown onto a barrier island in southern Florida. Prior to this event, this species did not inhabit the island, but with the ample vegetation on the island and a lack of predators, the displaced individuals were able to survive and reproduce. When the butterflies initially arrived on the island, they did not have to compete for food or space. What type of population growth did they likely exhibit?

Accepted Answer

A)   logistic
B)   exponential
C)   density-dependent
D)   density-independent
E)   logarithmicF) D) and E)
G) C) and E)

Question 13

A butterfly species has very wide distribution across southern Florida. In addition, the adults and caterpillars can use a wide array of plant species as a food source and also tolerant a broad range of temperatures. Based on these criteria, this species is unlikely to face extinction in the immediate future.

Accepted Answer

A)   True because they have a restricted geographic range.
B)   False because they have an extensive geographic range.
C)   True because they have broad habitat tolerances.
D)   False because all the local populations on the mainland and island are small.
E)   True because they have narrow habitat tolerances.F) A) and B)
G) All of the above

Question 14

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

Accepted Answer

A)   parasitism
B)   a wildfire
C)   a tornado
D)   flooding
E)   reduction in birth rateF) A) and B)
G) A) and C)

Question 15

The growth rate continues to rise in some Asian countries. This is because

Accepted Answer

A)   there is a higher number of reproductive individuals compared to postreproductive individuals.
B)   there is a higher number of postreproductive and reproductive individuals compared to prereproductive individuals.
C)   there is a higher number of prereproductive and reproductive individuals compared to postreproductive individuals.
D)   there is an equal number of prereproductive and reproductive individuals.
E)   there are more postreproductive individuals compared to prereproductive individuals.F) B) and E)
G) A) and B)

Question 16

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) B) and D)
G) C) and D)

Question 17

Which of the following is NOT characteristic of opportunistic populations?

Accepted Answer

A)   short life span
B)   short time to reach sexual maturity
C)   production of many offspring
D)   little or no parental care
E)   logistic growthF) None of the above
G) B) and D)

Question 18

During a recent hurricane, 25 individuals of the same butterfly species were blown onto a barrier island in southern Florida. When the butterflies first arrived on the island, they remained in the southeast corner of the island where most of the flowering plants had not been destroyed or uprooted by the high winds and seas during the hurricane. What type of distribution do these butterflies exhibit?

Accepted Answer

A)   clumped
B)   random
C)   dispersed
D)   uniform
E)   evenF) B) and D)
G) D) and E)

Question 19

Which of the following represents a Type III survivorship curve?

Accepted Answer

A)   Spiders produce egg sacs with thousands of offspring but only a few survive to adulthood.
B)   Each spring an oak tree drops thousands of seeds but only a few will ever reach sexual maturity.
C)   Daphnia produce offspring every 3 weeks. One Daphnia produces 8 young and after 1.5 weeks 4 of these individuals are still alive.
D)   Bald eagles return to the same mates and nests each year. They typically have 2-3 eggs and with parental care provided by both parents, the survival rate of the chicks is high.
E)   As adults, female leatherback sea turtles return to the beaches where they hatched to lay their own brood. One female produces approximately 600 eggs, but at least 400 of these will be eaten before they ever reach the ocean.F) C) and E)
G) A) and B)

Question 20

This photo is an example of a(n)  ______________.

Accepted Answer

A)   population
B)   community
C)   ecosystem
D)   biosphere
E)   equilibrium populationF) B) and D)
G) B) and C) C

Exam 30: Ecology and Populations

All of the following are true about human population growth EXCEPT

Correct Answer
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Correct Answer
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What is an organism's biotic potential?

Correct Answer
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E

Which of the following represents replacement reproduction.

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

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

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

Correct Answer
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Which of the following is true about populations with a negative growth rate?

Correct Answer
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In European countries such as Italy, people are delaying childbirth and or choosing to have only 1 or no children. Which of the following age structure diagrams illustrates this type of trend?

Correct Answer
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B

Which of the following descriptions is NOT associated with the correct survivorship curve?

Correct Answer
verified

During a recent hurricane, 25 individuals of the same butterfly species were blown onto a barrier island in southern Florida. The hurricane which lead to the arrival of the butterflies on the island is an example of a(n) ________ factor.

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

Correct Answer
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The growth rate continues to rise in some Asian countries. This is because

Correct Answer
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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
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Which of the following is NOT characteristic of opportunistic populations?

Correct Answer
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Which of the following represents a Type III survivorship curve?

Correct Answer
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This photo is an example of a(n) ______________.

Correct Answer
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C

Exam 30: Ecology and Populations

All of the following are true about human population growth EXCEPT

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

What is an organism's biotic potential?

Correct AnswerverifiedE

Which of the following represents replacement reproduction.

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. This is an example of

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following is true about populations with a negative growth rate?

Correct AnswerverifiedShow Answer

In European countries such as Italy, people are delaying childbirth and or choosing to have only 1 or no children. Which of the following age structure diagrams illustrates this type of trend?

Correct AnswerverifiedB

Which of the following descriptions is NOT associated with the correct survivorship curve?

Correct AnswerverifiedShow Answer

During a recent hurricane, 25 individuals of the same butterfly species were blown onto a barrier island in southern Florida. The hurricane which lead to the arrival of the butterflies on the island is an example of a(n) ________ factor.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The growth rate continues to rise in some Asian countries. This is because

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 AnswerverifiedShow Answer

Which of the following is NOT characteristic of opportunistic populations?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Which of the following represents a Type III survivorship curve?

Correct AnswerverifiedShow Answer

This photo is an example of a(n) ______________.

Correct AnswerverifiedC

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E

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B

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C