Question 1

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

Question 2

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.

Question 3

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

Accepted Answer

A) True 
 B)False

Question 4

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 5

A relationship in which both species benefit is best labeled

Accepted Answer

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

Question 6

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

Accepted Answer

A) True 
 B)False

Question 7

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.

Question 8

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.

Question 9

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

Accepted Answer

A) True 
 B)False

Question 10

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

Question 11

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

Question 12

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

Question 13

____________________ starts slowly but then accelerates as the population increases.

Accepted Answer

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

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

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

Question 17

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

Question 18

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

Accepted Answer

A) True 
 B)False

Question 19

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.

Question 20

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

Exam 5: Biodiversity, Species Interactions, and Population Control

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

Correct Answer
verified

Correct Answer
verified
The predator species would be ...
View Answer

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

Correct Answer
verified

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

Correct Answer
verified

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

Correct Answer
verified

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

Correct Answer
verified

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?

Correct Answer
verified

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

Correct Answer
verified

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

Correct Answer
verified

State briefly the known threats to kelp forests.

Correct Answer
verified
1. Sea urchin populations are increasing...
View Answer

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

Correct Answer
verified

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

Correct Answer
verified

A human population crash occurred

Correct Answer
verified

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

Correct Answer
verified

Which of the following would undergo secondary succession?

Correct Answer
verified

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

Correct Answer
verified

A climax community is a(n)

Correct Answer
verified

A relationship in which both species benefit is best labeled

Correct Answer
verified

____________________ starts slowly but then accelerates as the population increases.

Correct Answer
verified

A population crash occurs when

Correct Answer
verified

Exam 5: Biodiversity, Species Interactions, and Population Control

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

Correct AnswerverifiedShow Answer

Correct AnswerverifiedThe predator species would be ...View AnswerShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

State briefly the known threats to kelp forests.

Correct Answerverified1. Sea urchin populations are increasing...View AnswerShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

A human population crash occurred

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following would undergo secondary succession?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

A climax community is a(n)

Correct AnswerverifiedShow Answer

A relationship in which both species benefit is best labeled

Correct AnswerverifiedShow Answer

____________________ starts slowly but then accelerates as the population increases.

Correct AnswerverifiedShow Answer

A population crash occurs when

Correct AnswerverifiedShow Answer

Correct Answer
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Correct Answer
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The predator species would be ...
View Answer

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
verified
1. Sea urchin populations are increasing...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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