Question 1

Which of the following is NOT one of the chapter's three big ideas?

Accepted Answer

A)  There are always limits to population growth in nature. 
B)  Certain interactions among species affects their use of resources and their population sizes. 
C)  The balance of nature theory only. 
D)  The balance of nature theory and the concept of restoration of ecosystems by humans. 
E)  Changes in environmental conditions cause communities and ecosystems to gradually alter their species composition and population sizes. 
A)  There are always limits to population growth in nature. 
B)  Certain interactions among species affects their use of resources and their population sizes. 
C)  The balance of nature theory only. 
D)  The balance of nature theory and the concept of restoration of ecosystems by humans. 
E)  Changes in environmental conditions cause communities and ecosystems to gradually alter their species composition and population sizes.

Question 2

A relationship in which a member of one species obtains its nourishment by living on, in, or near a member of another species over an extended time is best labeled

Accepted Answer

A)  Competition 
B)  Predation 
C)  Mutualism 
D)  Parasitism 
E)  Commensalism 
A)  Competition 
B)  Predation 
C)  Mutualism 
D)  Parasitism 
E)  Commensalism

Question 3

A relationship in which one species benefits while the other is neither helped nor harmed to any significant degree is best labeled

Accepted Answer

A)  Competition 
B)  Predation 
C)  Commensalism 
D)  Parasitism 
E)  Mutualism 
A)  Competition 
B)  Predation 
C)  Commensalism 
D)  Parasitism 
E)  Mutualism

Question 4

A human population crash occurred

Accepted Answer

A)  in Ireland in the 1800's following the destruction of the potato crop 
B)  in Idaho in the 1800's following the destruction of the potato crop 
C)  in Japan in 2011 following the tsunami 
D)  in the United States in the 1800's following the Civil War 
E)  in both Japan and Idaho 
A)  in Ireland in the 1800's following the destruction of the potato crop 
B)  in Idaho in the 1800's following the destruction of the potato crop 
C)  in Japan in 2011 following the tsunami 
D)  in the United States in the 1800's following the Civil War 
E)  in both Japan and Idaho

Question 5

Limiting factors are physical or chemical factors that can determine the numbers of organisms in a population.

Accepted Answer

A) True 
 B)False

Question 6

The process of secondary succession would typically follow a forest fire.

Accepted Answer

A) True 
 B)False

Question 7

Hawks typically forage for their rodent prey species during the daytime. While owls may eat similar prey species, and live in the same area, they forage during the night. This is best described as an example of

Accepted Answer

A)  interspecific competition 
B)  Mutualism 
C)  parasitism 
D)  Predation 
E)  resource partitioning 
A)  interspecific competition 
B)  Mutualism 
C)  parasitism 
D)  Predation 
E)  resource partitioning

Question 8

A population crash occurs when

Accepted Answer

A)  A population approaches its carrying capacity. 
B)  Environmental resistance comes into play gradually. 
C)  Resources are essentially unlimited. 
D)  A population greatly overshoots carrying capacity, and resulting environmental pressures cause effects. 
E)  The population growth rate slows. 
A)  A population approaches its carrying capacity. 
B)  Environmental resistance comes into play gradually. 
C)  Resources are essentially unlimited. 
D)  A population greatly overshoots carrying capacity, and resulting environmental pressures cause effects. 
E)  The population growth rate slows.

Question 9

The interaction of two species with each can actually affect the evolution of those species.

Accepted Answer

A) True 
 B)False

Question 10

Which of the following is accurate with regards to the balance of nature hypothesis?

Accepted Answer

A)  It is currently viewed as the most accurate description of how ecological succession can arise at a climax community. 
B)  It is the historically held equilibrium model of succession in which, once achieved, a climax community will be dominated by a few long-lived plant species. 
C)  It suggests that there are always an appropriate number and diversity of producers to allow an ever-increasing number of primary consumers to inhabit a changing community. 
D)  It suggests that the pathway of ecological succession is not predictable. 
E)  It is an example of something that scientists were able to disprove conclusively. 
A)  It is currently viewed as the most accurate description of how ecological succession can arise at a climax community. 
B)  It is the historically held equilibrium model of succession in which, once achieved, a climax community will be dominated by a few long-lived plant species. 
C)  It suggests that there are always an appropriate number and diversity of producers to allow an ever-increasing number of primary consumers to inhabit a changing community. 
D)  It suggests that the pathway of ecological succession is not predictable. 
E)  It is an example of something that scientists were able to disprove conclusively.

Question 11

A relationship in which both species benefit is best labeled

Accepted Answer

A)  Competition 
B)  Predation 
C)  Mutualism 
D)  Parasitism 
E)  Commensalism 
A)  Competition 
B)  Predation 
C)  Mutualism 
D)  Parasitism 
E)  Commensalism

Question 12

The graph above shows the census count for two animal species, A and B, over a 31 year period. Animal A and animal B have a predator-prey relationship.
-What description would apply to the predator species in the graph above if the prey species were its only source of food? What assumptions could we make about that predator species if this were the case?

Accepted Answer

The predator species would be

Question 13

Which of the following would undergo secondary succession?

Accepted Answer

A)  cooled volcanic lava 
B)  an abandoned parking lot 
C)  a heavily polluted stream that has been cleaned up 
D)  a bare rock outcrop 
E)  a newly created shallow pond 
A)  cooled volcanic lava 
B)  an abandoned parking lot 
C)  a heavily polluted stream that has been cleaned up 
D)  a bare rock outcrop 
E)  a newly created shallow pond

Question 14

Which of the following best categorizes the most common form of interspecific species interactions?

Accepted Answer

A)  Competition 
B)  Mutualism 
C)  Parasitism 
D)  Commensalism 
E)  Predation 
A)  Competition 
B)  Mutualism 
C)  Parasitism 
D)  Commensalism 
E)  Predation

Question 15

State briefly the known threats to kelp forests.

Accepted Answer

1. Sea urchin populations are increasing

Question 16

A climax community is a(n)

Accepted Answer

A)  community in primary succession 
B)  community in secondary succession 
C)  mature community 
D)  immature community 
E)  balanced community 
A)  community in primary succession 
B)  community in secondary succession 
C)  mature community 
D)  immature community 
E)  balanced community

Question 17

In a certain population of rabbits one year, 25 new rabbits are born and 5 move into the population from surrounding areas. However, 10 rabbits die, and 5 leave the population. What is the population change?

Accepted Answer

A)  25 
B)  10 
C)  30 
D)  15 
E)  There is no change because birth and immigration equaled the deaths and emigration. 
A)  25 
B)  10 
C)  30 
D)  15 
E)  There is no change because birth and immigration equaled the deaths and emigration.

Question 18

____________________ starts slowly but then accelerates as the population increases.

Accepted Answer

The answer of ____________________ starts slowly but then accelerates as...

Question 19

The key reason we should care about recovery of the southern sea otter population is

Accepted Answer

A)  the fact that they are a keystone species 
B)  their charismatic personality, which makes them pleasant to observe 
C)  because they are a food source for humans 
D)  because they are a food source for tuna, which is a food source for humans 
E)  the fact that they are a keystone species and because they are a food source for tuna 
A)  the fact that they are a keystone species 
B)  their charismatic personality, which makes them pleasant to observe 
C)  because they are a food source for humans 
D)  because they are a food source for tuna, which is a food source for humans 
E)  the fact that they are a keystone species and because they are a food source for tuna

Question 20

The terms inertia and stability, with respect to ecosystems, are mutually exclusive.

Accepted Answer

A) True 
 B)False

Which of the following is NOT one of the chapter's three big ideas?

A relationship in which a member of one species obtains its nourishment by living on, in, or near a member of another species over an extended time is best labeled

A relationship in which one species benefits while the other is neither helped nor harmed to any significant degree is best labeled

A human population crash occurred

Limiting factors are physical or chemical factors that can determine the numbers of organisms in a population.

The process of secondary succession would typically follow a forest fire.

Hawks typically forage for their rodent prey species during the daytime. While owls may eat similar prey species, and live in the same area, they forage during the night. This is best described as an example of

A population crash occurs when

The interaction of two species with each can actually affect the evolution of those species.

Which of the following is accurate with regards to the balance of nature hypothesis?

A relationship in which both species benefit is best labeled

Which of the following would undergo secondary succession?

Which of the following best categorizes the most common form of interspecific species interactions?

State briefly the known threats to kelp forests.

A climax community is a(n)

In a certain population of rabbits one year, 25 new rabbits are born and 5 move into the population from surrounding areas. However, 10 rabbits die, and 5 leave the population. What is the population change?

____________________ starts slowly but then accelerates as the population increases.

The key reason we should care about recovery of the southern sea otter population is

The terms inertia and stability, with respect to ecosystems, are mutually exclusive.

Environmental Problems, Their Causes, and Sustainability

Science, Matter, and Energy

Ecosystems: What Are They and How Do They Work

Biodiversity and Evolution

The Human Population and Urbanization

Climate and Biodiversity

Sustaining Biodiversity: the Species Approach

Sustaining Biodiversity: the Ecosystem Approach

Food, Soil, and Pest Management

Water Resources and Water Pollution

Geology and Nonrenewable Minerals

Energy

Environmental Hazards and Human Health

Air Pollution, Climate Change, and Ozone Depletion

Solid and Hazardous Waste

Environmental Economics, Politics, and Worldviews

Filters

Exam 5: Biodiversity, Species Interactions, and Population Control

Which of the following is NOT one of the chapter's three big ideas?

A relationship in which a member of one species obtains its nourishment by living on, in, or near a member of another species over an extended time is best labeled

A relationship in which one species benefits while the other is neither helped nor harmed to any significant degree is best labeled

A human population crash occurred

Limiting factors are physical or chemical factors that can determine the numbers of organisms in a population.

The process of secondary succession would typically follow a forest fire.

Hawks typically forage for their rodent prey species during the daytime. While owls may eat similar prey species, and live in the same area, they forage during the night. This is best described as an example of

A population crash occurs when

The interaction of two species with each can actually affect the evolution of those species.

Which of the following is accurate with regards to the balance of nature hypothesis?

A relationship in which both species benefit is best labeled

Which of the following would undergo secondary succession?

Which of the following best categorizes the most common form of interspecific species interactions?

State briefly the known threats to kelp forests.

A climax community is a(n)

In a certain population of rabbits one year, 25 new rabbits are born and 5 move into the population from surrounding areas. However, 10 rabbits die, and 5 leave the population. What is the population change?

____________________ starts slowly but then accelerates as the population increases.

The key reason we should care about recovery of the southern sea otter population is

The terms inertia and stability, with respect to ecosystems, are mutually exclusive.

Environmental Problems, Their Causes, and Sustainability

Science, Matter, and Energy

Ecosystems: What Are They and How Do They Work

Biodiversity and Evolution

The Human Population and Urbanization

Climate and Biodiversity

Sustaining Biodiversity: the Species Approach

Sustaining Biodiversity: the Ecosystem Approach

Food, Soil, and Pest Management

Water Resources and Water Pollution

Geology and Nonrenewable Minerals

Energy

Environmental Hazards and Human Health

Air Pollution, Climate Change, and Ozone Depletion

Solid and Hazardous Waste

Environmental Economics, Politics, and Worldviews

Filters