Chapter 56 – Community Ecology
Multiple Choice Questions
53. Garlic mustard is an invasive plant species in North American temperate forests. Garlic
mustard secretes an allelochemical that interferes with relationships between native tree roots
and their mycorrhizal fungi. This would be an example of
54. Following their respective breeding seasons, several species of hummingbirds occur at
the same locations in North America and several hummingbird flowers bloom simultaneously
in these habitats. These flowers seem to have converged to a common morphology and
color. Birds have the most visual sensitivity to the color red. Following their breeding season,
these species of hummingbirds are
Chapter 56 – Community Ecology
Clarify question:
What is the key concept addressed by the question?
What type of thinking is required?
Gather Content:
What do you already know about allopatric and sympatric populations of organisms? What
other information is related to the question?
Choose Answer:
Given what you now know, what information is most likely to produce the correct
answer?
Reflection on Process:
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Check All That Apply Questions
Chapter 56 – Community Ecology
55. Following their respective breeding seasons, several species of hummingbirds occur at
the same locations in North America and several hummingbird flowers bloom simultaneously
in these habitats. These flowers seem to have converged to a common morphology and
color. Birds are most visually sensitive to the color red. Hummingbird flowers are pollinated
by hummingbirds. Which of the following features of these flowers would indicate they have
coevolved with hummingbirds? (Check all that apply)
Clarify question:
What is the key concept addressed by the question?
What type of thinking is required?
Gather Content:
What do you already know about coevolution? What other information is related to the
question?
Choose Answer:
Given what you now know, what information is most likely to produce the correct answer?
Reflection on Process:
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 56 – Community Ecology
True / False Questions
56. When there are high levels of disturbance in a community, the number of K-selected
species should increase along with the overall diversity of the community.
Chapter 56 – Community Ecology
Clarify question:
What is the key concept addressed by the question?
What type of thinking is required?
Gather Content:
What do you already know about K-selected species? What other information is related to
the question?
Choose Answer:
Given what you now know, what information is most likely to produce the correct answer?
Reflection on Process:
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 56 – Community Ecology
57. In general, communities in early succession will be dominated by fast-growing species
with r-selected life histories.
Check All That Apply Questions
58. Forests, like other ecological systems, are subject to the species succession process.
Which of the following would be characteristics of pioneer plant species facilitating the early
stages of forest succession? (Check all that apply)
Chapter 56 – Community Ecology
Clarify question:
What is the key concept addressed by the question?
What type of thinking is required?
Gather Content:
What do you already know about succession? What other information is related to the
question?
Choose Answer:
Given what you now know, what information is most likely to produce the correct answer?
Reflection on Process:
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 56 – Community Ecology
True / False Questions
59. Resource partitioning would be most likely to occur between allopatric populations of
species with similar ecological niches.
Chapter 56 – Community Ecology
60. Mimicry is a form of camouflage.
Clarify question:
What is the key concept addressed by the question?
What type of thinking is required?
Gather Content:
What do you already know about mimicry and whether it could be involved with
camouflaging? What other information is related to the question?
Choose Answer:
Given what you now know, what information is most likely to produce the correct answer?
Reflection on Process:
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Check All That Apply Questions
Chapter 56 – Community Ecology
61. Communities with a high level of bacterial diversity are found in many habitats including
soil and aquatic environments. Recent studies indicate this diversity is crucial to the
functioning of these communities. The same studies have also found that phage abundance
plays a critical role in the maintenance of the bacterial diversity within these communities.
What is the probable role of phages in this community? (Check all that apply)
Clarify question:
What is the key concept addressed by the question?
What type of thinking is required?
Gather Content:
What do you already know about maintaining bacterial diversity in a community? What
other information is related to the question?
Choose Answer:
Given what you now know, what information is most likely to produce the correct answer?
Reflection on Process:
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?
Chapter 56 – Community Ecology
Multiple Choice Questions
62. Communities with a high level of bacterial diversity are found in many habitats including
soil and aquatic environments. Recent studies indicate this diversity is crucial to the
functioning of these communities. The same studies have also found that phage abundance
plays a critical role in the maintenance of the bacterial diversity within these communities.
Are phages a density-dependent or a density-independent regulating factor?
Chapter 56 – Community Ecology
Clarify question:
What is the key concept addressed by the question?
What type of thinking is required?
Gather Content:
What do you already know about density-dependent versus density-independent factors
affecting a community? What other information is related to the question?
Choose Answer:
Given what you now know, what information is most likely to produce the correct answer?
Reflection on Process:
Did your problem-solving process lead you to the correct answer? If not, where did the
process break down or lead you astray? How can you revise your approach to produce a
more desirable result?