Question 1

The associated figure provides support for which of the following processes?

Accepted Answer

A)  secondary succession 
B)  competitive exclusion 
C)  coevolution 
D)  mutualism 
E)  resource partitioning 
A)  secondary succession 
B)  competitive exclusion 
C)  coevolution 
D)  mutualism 
E)  resource partitioning

Question 2

Explain Gleason's individualistic model describing community structure.

Accepted Answer

Gleason's individualistic mode

Question 3

Which is not a property that is characteristic of a community?

Accepted Answer

A)  energy and nutrient flow throughout the community 
B)  the types of species present 
C)  the relative abundance of each species 
D)  the interactions among different species 
E)  All of these are properties that are characteristic of a community. 
A)  energy and nutrient flow throughout the community 
B)  the types of species present 
C)  the relative abundance of each species 
D)  the interactions among different species 
E)  All of these are properties that are characteristic of a community.

Question 4

An organism's ecological role within the structure and function of a particular community is its:

Accepted Answer

A)  habitat. 
B)  trophic level. 
C)  population. 
D)  ecological niche. 
E)  competition. 
A)  habitat. 
B)  trophic level. 
C)  population. 
D)  ecological niche. 
E)  competition.

Question 5

Explain the ecological significance of limiting resources, using three specific examples in your discussion.

Accepted Answer

A limiting resource is an environmental

Question 6

In a parasitic relationship where the host contracts a disease and sometimes dies, the parasite is called:

Accepted Answer

A)  a predator. 
B)  a keystone species. 
C)  a mutualistic symbiont. 
D)  an interspecific competitor. 
E)  a pathogen. 
A)  a predator. 
B)  a keystone species. 
C)  a mutualistic symbiont. 
D)  an interspecific competitor. 
E)  a pathogen.

Question 7

Since the realized niche and the fundamental niche are not typically the same, this illustrates that:

Accepted Answer

A)  two different species cannot share the same niche. 
B)  resource partitioning is necessary for two species whose fundamental niches overlap to survive. 
C)  interspecific competition is necessary for two species whose fundamental niches overlap to survive. 
D)  communities with greater species diversity have more unrealized fundamental niches. 
E)  complex interactions among numerous species produce each species' realized niche. 
A)  two different species cannot share the same niche. 
B)  resource partitioning is necessary for two species whose fundamental niches overlap to survive. 
C)  interspecific competition is necessary for two species whose fundamental niches overlap to survive. 
D)  communities with greater species diversity have more unrealized fundamental niches. 
E)  complex interactions among numerous species produce each species' realized niche.

Question 8

During __________ between predator and prey species, the predatory species becomes more efficient at catching prey, while the prey species becomes better at escaping predators.

Accepted Answer

A)  character displacement 
B)  coevolution 
C)  Batesian mimicry 
D)  competitive exclusion 
E)  succession 
A)  character displacement 
B)  coevolution 
C)  Batesian mimicry 
D)  competitive exclusion 
E)  succession

Question 9

The association of nitrogen fixing bacteria of the genus Rhizobium with legumes such as peas is an example of mutualism.
____________________

Accepted Answer

A) True 
 B)False

Question 10

Primary succession may be seen:

Accepted Answer

A)  on new lava or on sand dunes. 
B)  after a fire. 
C)  when farmland is abandoned. 
D)  only in tropical rain forests. 
E)  in any community that has periodic disturbances. 
A)  on new lava or on sand dunes. 
B)  after a fire. 
C)  when farmland is abandoned. 
D)  only in tropical rain forests. 
E)  in any community that has periodic disturbances.

Question 11

Select the answer choice that best describes facilitation.

Accepted Answer

A)  a species interaction that modifies and enhances the local environment for other species 
B)  a species interaction that modifies and detracts from the local environment, inhibiting other species 
C)  an interaction between members of a population that enhances the local environment for other members of the same population 
D)  an interaction between members of a population that detracts from the local environment, inhibiting other members of the same population 
E)  a species interaction that enhances the local environment for a previously extant species 
A)  a species interaction that modifies and enhances the local environment for other species 
B)  a species interaction that modifies and detracts from the local environment, inhibiting other species 
C)  an interaction between members of a population that enhances the local environment for other members of the same population 
D)  an interaction between members of a population that detracts from the local environment, inhibiting other members of the same population 
E)  a species interaction that enhances the local environment for a previously extant species

Question 12

MATCHING
a.restricts ecological niche species
d.finding common patterns and processes within the community
b.local environment in which a species lives
e.biological community and its abiotic environment
c.species' ecological role within the structure and function of a community
-community ecology

Accepted Answer

The answer of MATCHING
a.restricts ecological niche species
d.finding common patterns and...

Question 13

Nicotine synthesis is an adaptation of plant chemical defense against insects.
____________________

Accepted Answer

A) True 
 B)False

Question 14

Animals with chemical defenses are also typically:

Accepted Answer

A)  fast runners. 
B)  aposematic. 
C)  small in size. 
D)  large in size. 
E)  camouflaged. 
A)  fast runners. 
B)  aposematic. 
C)  small in size. 
D)  large in size. 
E)  camouflaged.

Question 15

Competitive exclusion is a result of:

Accepted Answer

A)  interspecific competition. 
B)  intraspecific competition. 
C)  character displacement. 
D)  succession. 
E)  community complexity. 
A)  interspecific competition. 
B)  intraspecific competition. 
C)  character displacement. 
D)  succession. 
E)  community complexity.

Question 16

Most likely, which of the following would not be an example of a limiting resource?

Accepted Answer

A)  temperature in a terrestrial habitat 
B)  mineral content of the soil 
C)  amount of precipitation 
D)  salinity in an aquatic habitat 
E)  growth rate 
A)  temperature in a terrestrial habitat 
B)  mineral content of the soil 
C)  amount of precipitation 
D)  salinity in an aquatic habitat 
E)  growth rate

Question 17

A community consists of __________ species in a given area.

Accepted Answer

A)  one 
B)  two 
C)  three 
D)  four 
E)  all 
A)  one 
B)  two 
C)  three 
D)  four 
E)  all

Question 18

The species richness of high-latitude communities is __________ compared with that of low-latitude communities.

Accepted Answer

A)  low 
B)  high 
C)  no different 
D)  more dense 
E)  complex 
A)  low 
B)  high 
C)  no different 
D)  more dense 
E)  complex

Question 19

Destructive outbreaks of pests are __________ in cultivated fields, which are low-diversity communities, than in natural communities with greater species richness.

Accepted Answer

A)  less common 
B)  more common 
C)  equally common 
D)  most easily prevented 
E)  rarely occur 
A)  less common 
B)  more common 
C)  equally common 
D)  most easily prevented 
E)  rarely occur

Question 20

Humans have small mites that live in hair follicles and oil glands around the nose and eyelashes.What would you need to know to classify them as exhibiting mutualism, commensalisms, or parasitism?

Accepted Answer

Concepts to Consider: In mutualism, bene

Exam 54: Community Ecology

The associated figure provides support for which of the following processes?

Explain Gleason's individualistic model describing community structure.

Which is not a property that is characteristic of a community?

An organism's ecological role within the structure and function of a particular community is its:

Explain the ecological significance of limiting resources, using three specific examples in your discussion.

In a parasitic relationship where the host contracts a disease and sometimes dies, the parasite is called:

Since the realized niche and the fundamental niche are not typically the same, this illustrates that:

During __________ between predator and prey species, the predatory species becomes more efficient at catching prey, while the prey species becomes better at escaping predators.

The association of nitrogen fixing bacteria of the genus Rhizobium with legumes such as peas is an example of mutualism. ____________________

Primary succession may be seen:

Select the answer choice that best describes facilitation.

MATCHING a.restricts ecological niche species d.finding common patterns and processes within the community b.local environment in which a species lives e.biological community and its abiotic environment c.species' ecological role within the structure and function of a community -community ecology

Nicotine synthesis is an adaptation of plant chemical defense against insects. ____________________

Animals with chemical defenses are also typically:

Competitive exclusion is a result of:

Most likely, which of the following would not be an example of a limiting resource?

A community consists of __________ species in a given area.

The species richness of high-latitude communities is __________ compared with that of low-latitude communities.

Destructive outbreaks of pests are __________ in cultivated fields, which are low-diversity communities, than in natural communities with greater species richness.

Humans have small mites that live in hair follicles and oil glands around the nose and eyelashes.What would you need to know to classify them as exhibiting mutualism, commensalisms, or parasitism?

A View of Life

Atoms and Molecules: the Chemical Basis of Life

The Chemistry of Life: Organic Compounds

Organization of the Cell

Biological Membranes

Cell Communication

Energy and Metabolism

How Cells Make Atp: Energy-Releasing Pathways

Photosynthesis: Capturing Light Energy

Chromosomes, Mitosis, and Meiosis

The Basic Principles of Heredity

Dna: the Carrier of Genetic Information

Gene Expression

Gene Regulation

Dna Technology and Genomics

Human Genetics and the Human Genome

Developmental Genetics

Introduction to Darwinian Evolution

Evolutionary Change in Populations

Speciation and Macroevolution

The Origin and Evolutionary History of Life

The Evolution of Primates

Understanding Diversity: Systematics

Viruses and Subviral Agents

Bacteria and Archaea

Protists

Seedless Plants

Seed Plants

The Fungi

An Introduction to Animal Diversity

Sponges, Cnidarians, Ctenophores, and Protostomes

The Deuterostomes

Plant Structure, Growth, and Development

Leaf Structure and Function

Stem Structure and Transport

Roots and Mineral Nutrition

Reproduction in Flowering Plants

Plant Developmental Responses to External and Internal Signals

Animal Structure and Function: an Introduction

Protection, Support, and Movement

Neural Signaling

Neural Regulation

Sensory Systems

Internal Transport

The Immune System: Internal Defense

Gas Exchange

Processing Food and Nutrition

Osmoregulation and Disposal of Metabolic Wastes

Endocrine Regulation

Reproduction

Animal Development

Animal Behavior

Introduction to Ecology: Population Ecology

Ecosystems and the Biosphere

Ecology and the Geography of Life

Biological Diversity and Conservation Biology

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