Question 1

Which of these best describes Type II survivorship?

Accepted Answer

A) There is high survivorship for the very young. 
B) Most individuals survive to older age intervals. 
C) Survivorship is constant over the lifespan. 
D) Survivorship is high for the few individuals that survive to a certain age. 
A) There is high survivorship for the very young. 
B) Most individuals survive to older age intervals. 
C) Survivorship is constant over the lifespan. 
D) Survivorship is high for the few individuals that survive to a certain age. C

Question 2

Opportunistic species typically ________.

Accepted Answer

A) are very long-living 
B) have a large number of offspring 
C) reach sexual maturity slowly 
D) exhibit a Type I survivorship curve 
A) are very long-living 
B) have a large number of offspring 
C) reach sexual maturity slowly 
D) exhibit a Type I survivorship curve B

Question 3

Please read the following scenario to answer the following questions.
Michigan's Isle Royale is an island located in Lake Superior that is 45 miles long and 9 miles wide.Ecologists estimate that the moose population on the island has been there since around 1900.The wolf population on the island,on the other hand,has been there only since the winter of 1949.Weather conditions had to be calm and cold enough for the lake to freeze and the first wolves to make the passage over to the island.When the wolves arrived,they were greeted with a large moose population that had no predators.The moose population was at a dangerously high level,but was kept in check by the arrival of the wolves.This "harmonious" pattern continued for at least 20 years.
In 1982,the wolf population suddenly crashed.The problem was a new canine virus.This virus surfaced around the world in 1978 and spread rapidly in about 6 months.Infected animals can survive,but they have to be treated immediately.Ecologists hypothesized that the virus arrived on the island carried on the shoe of a human traveler.The wolf population decreased from 50 to 14 individuals in a year.While the wolf population dropped,the moose population increased.However,the winter of 1996 was extremely harsh and the moose population experienced a major crash.More than 500 animals died during the winter months,reducing the population to less than 800 animals.
-What most likely happened when the wolves first arrived on the island?

Accepted Answer

A) The wolf population increased exponentially. 
B) The wolf population was at its carrying capacity. 
C) The moose population crashed because of the introduction of a predator. 
D) The moose population increased exponentially. 
A) The wolf population increased exponentially. 
B) The wolf population was at its carrying capacity. 
C) The moose population crashed because of the introduction of a predator. 
D) The moose population increased exponentially. A

Question 4

Please read the following scenario to answer the following questions.
In May 2014,the European Union (EU)published a report of population structure and aging data that described growing trends of low birth rates and longer life expectancies in the EU.In their report,the EU described that,due to these trends,some EU member states are beginning to demonstrate a population structure with many much-older individuals.
-Why might this changing population structure be a concern for EU leaders?

Accepted Answer

A) Eventually greater resources will be needed to support a much larger and older generation,and this burden will fall on an increasingly smaller workforce. 
B) Eventually the EU population will exhibit a Type III survivorship curve. 
C) Eventually intraspecific competition for resources amongst the older members of the population will lead to a decrease in food and water availability. 
D) Eventually individuals of reproductive age will face a boom-and-bust population cycle. 
A) Eventually greater resources will be needed to support a much larger and older generation,and this burden will fall on an increasingly smaller workforce. 
B) Eventually the EU population will exhibit a Type III survivorship curve. 
C) Eventually intraspecific competition for resources amongst the older members of the population will lead to a decrease in food and water availability. 
D) Eventually individuals of reproductive age will face a boom-and-bust population cycle.

Question 5

The ecological footprint of the United States ________.

Accepted Answer

A) is about the same as the global average 
B) is lower than the global average 
C) shows that Americans consume a disproportionate amount of food and fuel 
D) shows that its population size is increasing slowly 
A) is about the same as the global average 
B) is lower than the global average 
C) shows that Americans consume a disproportionate amount of food and fuel 
D) shows that its population size is increasing slowly

Question 6

________ is the maximum population size that a particular habitat can support.

Accepted Answer

A) Population cycle 
B) Carrying capacity 
C) Life history pattern 
D) Survivorship curve 
A) Population cycle 
B) Carrying capacity 
C) Life history pattern 
D) Survivorship curve

Question 7

The use of the Indian mongoose to control rat populations ________.

Accepted Answer

A) shows the effectiveness of biological control 
B) shows why integrated pest management usually fails 
C) became a disaster when the mongoose turned out to be as invasive as its target 
D) is an example of how coevolution makes biological control difficult 
A) shows the effectiveness of biological control 
B) shows why integrated pest management usually fails 
C) became a disaster when the mongoose turned out to be as invasive as its target 
D) is an example of how coevolution makes biological control difficult

Question 8

In most developed countries,overall population growth rates ________.

Accepted Answer

A) are high,so the population size is growing rapidly 
B) are high,so the population size is fairly stable 
C) are near zero,so the population size is fairly stable 
D) are low,so the population size is declining 
A) are high,so the population size is growing rapidly 
B) are high,so the population size is fairly stable 
C) are near zero,so the population size is fairly stable 
D) are low,so the population size is declining

Question 9

Please read the following scenario to answer the following questions.
Michigan's Isle Royale is an island located in Lake Superior that is 45 miles long and 9 miles wide.Ecologists estimate that the moose population on the island has been there since around 1900.The wolf population on the island,on the other hand,has been there only since the winter of 1949.Weather conditions had to be calm and cold enough for the lake to freeze and the first wolves to make the passage over to the island.When the wolves arrived,they were greeted with a large moose population that had no predators.The moose population was at a dangerously high level,but was kept in check by the arrival of the wolves.This "harmonious" pattern continued for at least 20 years.
In 1982,the wolf population suddenly crashed.The problem was a new canine virus.This virus surfaced around the world in 1978 and spread rapidly in about 6 months.Infected animals can survive,but they have to be treated immediately.Ecologists hypothesized that the virus arrived on the island carried on the shoe of a human traveler.The wolf population decreased from 50 to 14 individuals in a year.While the wolf population dropped,the moose population increased.However,the winter of 1996 was extremely harsh and the moose population experienced a major crash.More than 500 animals died during the winter months,reducing the population to less than 800 animals.
-The virus introduced to the island in 1982 that reduced the wolf population is an example of ________.

Accepted Answer

A) a density-independent factor 
B) a density-dependent factor 
C) biological control 
D) intraspecific competition 
A) a density-independent factor 
B) a density-dependent factor 
C) biological control 
D) intraspecific competition

Question 10

Which of these best describes Type III survivorship?

Accepted Answer

A) There is high survivorship for the very young. 
B) Most individuals survive to older age intervals. 
C) Survivorship is constant over the lifespan. 
D) Survivorship is high for the few individuals that survive to a certain age. 
A) There is high survivorship for the very young. 
B) Most individuals survive to older age intervals. 
C) Survivorship is constant over the lifespan. 
D) Survivorship is high for the few individuals that survive to a certain age.

Question 11

This graph represents three different populations.Use it to answer the following questions.
  
-Which population is growing at the fastest rate?

Accepted Answer

A) Population A 
B) Population B 
C) Population C 
D) They are all growing at the same rate. 
A) Population A 
B) Population B 
C) Population C 
D) They are all growing at the same rate.

Question 12

The figure below shows population cycles of snowshoe hare and lynx.Recent field studies suggest that the most likely explanation for these cycles is ________.

Accepted Answer

A) periodic winter storms 
B) excessive predation of snowshoe hares 
C) nearly unlimited food for hares during the summers 
D) boom-and-bust cycles in lemming populations 
A) periodic winter storms 
B) excessive predation of snowshoe hares 
C) nearly unlimited food for hares during the summers 
D) boom-and-bust cycles in lemming populations

Question 13

Over time,the populations of most species ________.

Accepted Answer

A) fluctuate 
B) increase rapidly,crash,and never recover 
C) continuously increase 
D) exhibit boom-and-bust cycles 
A) fluctuate 
B) increase rapidly,crash,and never recover 
C) continuously increase 
D) exhibit boom-and-bust cycles

Question 14

In a population that is following a logistic growth pattern,what shape does the population's growth curve most closely resemble?

Accepted Answer

A) S 
B) J 
C) ∧ 
D) ∪ 
A) S 
B) J 
C) ∧ 
D) ∪

Question 15

Which of these factors operates on populations in a density-dependent manner?

Accepted Answer

A) blizzard 
B) volcanic eruption 
C) food supply 
D) flood 
A) blizzard 
B) volcanic eruption 
C) food supply 
D) flood

Question 16

Throughout most of human history,human population size ________.

Accepted Answer

A) was at carrying capacity 
B) grew very slowly 
C) showed boom-and-bust cycles 
D) skyrocketed 
A) was at carrying capacity 
B) grew very slowly 
C) showed boom-and-bust cycles 
D) skyrocketed

Question 17

When did male fur seals reach carrying capacity?

Accepted Answer

A) 1915 
B) 1930 
C) 1940 
D) 1950 
A) 1915 
B) 1930 
C) 1940 
D) 1950

Question 18

Please read the following scenario to answer the following questions.
Michigan's Isle Royale is an island located in Lake Superior that is 45 miles long and 9 miles wide.Ecologists estimate that the moose population on the island has been there since around 1900.The wolf population on the island,on the other hand,has been there only since the winter of 1949.Weather conditions had to be calm and cold enough for the lake to freeze and the first wolves to make the passage over to the island.When the wolves arrived,they were greeted with a large moose population that had no predators.The moose population was at a dangerously high level,but was kept in check by the arrival of the wolves.This "harmonious" pattern continued for at least 20 years.
In 1982,the wolf population suddenly crashed.The problem was a new canine virus.This virus surfaced around the world in 1978 and spread rapidly in about 6 months.Infected animals can survive,but they have to be treated immediately.Ecologists hypothesized that the virus arrived on the island carried on the shoe of a human traveler.The wolf population decreased from 50 to 14 individuals in a year.While the wolf population dropped,the moose population increased.However,the winter of 1996 was extremely harsh and the moose population experienced a major crash.More than 500 animals died during the winter months,reducing the population to less than 800 animals.
-The harsh winter that led to the death of many moose in 1996 is an example of ________.

Accepted Answer

A) a density-dependent factor 
B) biological control 
C) a density-independent factor 
D) a trigger for logistic growth 
A) a density-dependent factor 
B) biological control 
C) a density-independent factor 
D) a trigger for logistic growth

Question 19

If there are 500 oak trees in a forest covering 50 square kilometers,then the population density is ________.

Accepted Answer

A) 5 trees per square kilometer 
B) 10 trees per square kilometer 
C) 50 trees per square kilometer 
D) 100 trees per square kilometer 
A) 5 trees per square kilometer 
B) 10 trees per square kilometer 
C) 50 trees per square kilometer 
D) 100 trees per square kilometer

Question 20

Please read the following scenario to answer the following questions.
In May 2014,the European Union (EU)published a report of population structure and aging data that described growing trends of low birth rates and longer life expectancies in the EU.In their report,the EU described that,due to these trends,some EU member states are beginning to demonstrate a population structure with many much-older individuals.
-If this trend continues,what do you predict that the populations will look like decades from 2014?

Accepted Answer

A) There will be more older individuals than working-age individuals. 
B) There will be more children than older individuals. 
C) There will be more older individuals than children. 
D) There will be more working-age individuals than older ones. 
A) There will be more older individuals than working-age individuals. 
B) There will be more children than older individuals. 
C) There will be more older individuals than children. 
D) There will be more working-age individuals than older ones.

Exam 19: Population Ecology

Which of these best describes Type II survivorship?

Opportunistic species typically ________.

The ecological footprint of the United States ________.

________ is the maximum population size that a particular habitat can support.

The use of the Indian mongoose to control rat populations ________.

In most developed countries,overall population growth rates ________.

Which of these best describes Type III survivorship?

This graph represents three different populations.Use it to answer the following questions. -Which population is growing at the fastest rate?

The figure below shows population cycles of snowshoe hare and lynx.Recent field studies suggest that the most likely explanation for these cycles is ________.

Over time,the populations of most species ________.

In a population that is following a logistic growth pattern,what shape does the population's growth curve most closely resemble?

Which of these factors operates on populations in a density-dependent manner?

Throughout most of human history,human population size ________.

When did male fur seals reach carrying capacity?

If there are 500 oak trees in a forest covering 50 square kilometers,then the population density is ________.

Introduction: Biology Today

Essential Chemistry for Biology

The Molecules of Life

A Tour of the Cell

The Working Cell

Cellular Respiration: Obtaining Energy From Food

Photosynthesis: Using Light to Make Food

Cellular Reproduction: Cells From Cells

Patterns of Inheritance

The Structure and Function of Dna

How Genes Are Controlled

DNA Technology

How Populations Evolve

How Biological Diversity Evolves

The Evolution of Microbial Life

The Evolution of Plants and Fungi

The Evolution of Animals

An Introduction to Ecology and the Biosphere

Communities and Ecosystems

Unifying Concepts of Animal Structure and Function

Nutrition and Digestion

Circulation and Respiration

The Bodys Defenses

Hormones

Reproduction and Development

Nervous,Sensory,and Locomotor Systems

The Life of a Flowering Plant

The Working Plant

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