Question 1

Secondary succession is likely to occur ____.

Accepted Answer

A) in a newly formed volcanic island 
B) in an abandoned field 
C) in a mature forest 
D) on land exposed by glacial retreat 
E) on land with little to no soil 
A) in a newly formed volcanic island 
B) in an abandoned field 
C) in a mature forest 
D) on land exposed by glacial retreat 
E) on land with little to no soil

Question 2

Match the type of species interaction with the correct description.
-In this interaction, one individual or species usually is killed, while the other benefits by eating the first.

Accepted Answer

A) competition 
B) predation 
C) mutualism 
D) commensalism 
E) parasitism 
A) competition 
B) predation 
C) mutualism 
D) commensalism 
E) parasitism

Question 3

During the process of successional change, ____.

Accepted Answer

A) the total mass of living things remains constant 
B) pioneer species help build and improve the soil 
C) the pioneer community gives way quickly to the climax community 
D) nutrients cycle more rapidly with time 
E) indicator species disappear 
A) the total mass of living things remains constant 
B) pioneer species help build and improve the soil 
C) the pioneer community gives way quickly to the climax community 
D) nutrients cycle more rapidly with time 
E) indicator species disappear

Question 4

The fastest land animal is the cheetah, which can run about 70 mph. The fact that its main prey species, the Thomson's gazelle, can run about 50 mph, which is also very fast, is likely the result of ____.

Accepted Answer

A) character displacement 
B) mutualism 
C) interference competition 
D) predator-prey coevolution 
E) mimicry 
A) character displacement 
B) mutualism 
C) interference competition 
D) predator-prey coevolution 
E) mimicry

Question 5

Ideally (for a parasite), a host will live long enough to give a parasite time to produce ____.

Accepted Answer

A) nutrients 
B) pathogenic proteins 
C) local anesthetic 
D) offspring 
E) damage in the host's tissue 
A) nutrients 
B) pathogenic proteins 
C) local anesthetic 
D) offspring 
E) damage in the host's tissue

Question 6

What term describes a species with a disproportionately large effect on a community relative to its abundance?

Accepted Answer

A) pioneer 
B) indicator 
C) keystone 
D) exotic 
E) invasive 
A) pioneer 
B) indicator 
C) keystone 
D) exotic 
E) invasive

Question 7

Match the species' role in an ecosystem to the correct description.​
-​a species found in the region where it evolved and nowhere else

Accepted Answer

A) ​exotic species 
B) ​indicator species 
C) ​endemic species 
D) ​keystone species 
E) ​pioneer species 
A) ​exotic species 
B) ​indicator species 
C) ​endemic species 
D) ​keystone species 
E) ​pioneer species

Question 8

In mixed assemblages, baboons sometimes see predators that impalas do not hear, and impalas sometimes hear predators that baboons do not see. In both cases, the flight of one species alerts the other to danger. This interaction is an example of ____.

Accepted Answer

A) resource partitioning 
B) commensalism 
C) mutualism 
D) competition 
E) competitive exclusion 
A) resource partitioning 
B) commensalism 
C) mutualism 
D) competition 
E) competitive exclusion

Question 9

Explain the intermediate disturbance hypothesis.

Accepted Answer

Disturbances to a community can affect s

Question 10

How does brood parasitism harm the hosts and benefit the parasite?

Accepted Answer

The host species suffers by squandering

Question 11

In contrast to a predator, a parasite usually ____.

Accepted Answer

A) does not kill their host or does not kill it immediately 
B) kills its host immediately 
C) is a short-term visitor 
D) is larger than its host 
E) provides some benefit to the host 
A) does not kill their host or does not kill it immediately 
B) kills its host immediately 
C) is a short-term visitor 
D) is larger than its host 
E) provides some benefit to the host

Question 12

When one species actively prevents another from accessing a resource, it is called ____.

Accepted Answer

A) interference competition 
B) exploitative competition 
C) scavenging 
D) character displacement 
E) predation 
A) interference competition 
B) exploitative competition 
C) scavenging 
D) character displacement 
E) predation

Question 13

A bison grazing on prairie grasses is an example of ____.

Accepted Answer

A) parasitism 
B) herbivory 
C) competition 
D) commensalism 
E) mutualism 
A) parasitism 
B) herbivory 
C) competition 
D) commensalism 
E) mutualism

Question 14

What term best describes all of the species that live in a particular region?

Accepted Answer

A) population 
B) habitat 
C) niche 
D) community 
E) ecosystem 
A) population 
B) habitat 
C) niche 
D) community 
E) ecosystem

Question 15

Match the species' role in an ecosystem to the correct description.​
-​a species that evolved in one community and later became established in a different one

Accepted Answer

A) ​exotic species 
B) ​indicator species 
C) ​endemic species 
D) ​keystone species 
E) ​pioneer species 
A) ​exotic species 
B) ​indicator species 
C) ​endemic species 
D) ​keystone species 
E) ​pioneer species

Question 16

Match the type of species interaction with the correct description.
-In this interaction, both species benefit.

Accepted Answer

A) competition 
B) predation 
C) mutualism 
D) commensalism 
E) parasitism 
A) competition 
B) predation 
C) mutualism 
D) commensalism 
E) parasitism

Question 17

The evolutionary process by which species become adapted to use a shared limiting resource in a way that minimizes competition is known as ____.

Accepted Answer

A) competitive exclusion 
B) brood parasitism 
C) predation 
D) mimicry 
E) resource partitioning 
A) competitive exclusion 
B) brood parasitism 
C) predation 
D) mimicry 
E) resource partitioning

Question 18

​Four of the five answers are traits possessed by an ideal biological control agent. Select the exception.

Accepted Answer

A) ​It targets only one specific host species. 
B) ​It has a population growth rate comparable to the host's. 
C) ​It attacks a wide variety of hosts, including nontarget species. 
D) ​It has offspring that disperse widely. 
E) ​It is the host's natural enemy. 
A) ​It targets only one specific host species. 
B) ​It has a population growth rate comparable to the host's. 
C) ​It attacks a wide variety of hosts, including nontarget species. 
D) ​It has offspring that disperse widely. 
E) ​It is the host's natural enemy.

Question 19

Two species that interact for generations through symbiosis often coevolve. How does this happen?

Accepted Answer

Each species acts as

Question 20

Match the type of species interaction with the correct description.
-​the faster the top speed of a lion, the faster its prey (zebra) need to be to survive

Accepted Answer

A) herbivory 
B) competitive exclusion 
C) character displacement 
D) interference competition 
E) coevolution of predator and prey 
A) herbivory 
B) competitive exclusion 
C) character displacement 
D) interference competition 
E) coevolution of predator and prey

Exam 41: Community Ecology

Secondary succession is likely to occur ____.

Match the type of species interaction with the correct description. -In this interaction, one individual or species usually is killed, while the other benefits by eating the first.

During the process of successional change, ____.

The fastest land animal is the cheetah, which can run about 70 mph. The fact that its main prey species, the Thomson's gazelle, can run about 50 mph, which is also very fast, is likely the result of ____.

Ideally (for a parasite), a host will live long enough to give a parasite time to produce ____.

What term describes a species with a disproportionately large effect on a community relative to its abundance?

Match the species' role in an ecosystem to the correct description.​ -​a species found in the region where it evolved and nowhere else

In mixed assemblages, baboons sometimes see predators that impalas do not hear, and impalas sometimes hear predators that baboons do not see. In both cases, the flight of one species alerts the other to danger. This interaction is an example of ____.

Explain the intermediate disturbance hypothesis.

How does brood parasitism harm the hosts and benefit the parasite?

In contrast to a predator, a parasite usually ____.

When one species actively prevents another from accessing a resource, it is called ____.

A bison grazing on prairie grasses is an example of ____.

What term best describes all of the species that live in a particular region?

Match the species' role in an ecosystem to the correct description.​ -​a species that evolved in one community and later became established in a different one

Match the type of species interaction with the correct description. -In this interaction, both species benefit.

The evolutionary process by which species become adapted to use a shared limiting resource in a way that minimizes competition is known as ____.

​Four of the five answers are traits possessed by an ideal biological control agent. Select the exception.

Two species that interact for generations through symbiosis often coevolve. How does this happen?

Match the type of species interaction with the correct description. -​the faster the top speed of a lion, the faster its prey (zebra) need to be to survive

The Science of Biology

Lifes Chemical Basis

Molecules of Life

Cell Structure

Ground Rules of Metabolism

Where It Starts-Photosynthesis

Releasing Chemical Energy

DNA Structure and Function

From DNA to Protein

Control of Gene Expression

How Cells Reproduce

Meiosis and Sexual Reproduction

Patterns in Inherited Traits

Human Inheritance

Biotechnology

Evidence of Evolution

Processes of Evolution

Lifes Origin and Early Evolution

Viruses, Bacteria, and Archaea

The Protists

Plant Evolution

Fungi

Animals I: Major Invertebrate Groups

Animals Ii: the Chordates

Plant Tissues

Plant Nutrition and Transport

Plant Reproduction and Development

Animal Tissues and Organ Systems

Neural Control

Sensory Perception

Endocrine Control

Structural Support and Movement

Circulation

Immunity

Respiration

Digestion and Human Nutrition

Maintaining the Internal Environment

Reproduction and Development

Animal Behavior

Population Ecology

Ecosystems

The Biosphere

Human Effects on the Biosphere

Filters

Match the species' role in an ecosystem to the correct description. -a species found in the region where it evolved and nowhere else

Match the species' role in an ecosystem to the correct description. -a species that evolved in one community and later became established in a different one

Four of the five answers are traits possessed by an ideal biological control agent. Select the exception.

Match the type of species interaction with the correct description. -the faster the top speed of a lion, the faster its prey (zebra) need to be to survive