Question 1

An ant species that can live only on acacia trees is an example of ____. ​

Accepted Answer

A) an obligatory mutualism 
B) parasitism 
C) an ectoparasite 
D) an endoparasite 
E) character displacement 
A) an obligatory mutualism 
B) parasitism 
C) an ectoparasite 
D) an endoparasite 
E) character displacement

Question 2

An herbivore with the ability to recognize odors and avoid toxic plants is exhibiting evidence of ____. ​

Accepted Answer

A) predation 
B) herbivory 
C) coevolution 
D) optimal foraging 
E) mimicry 
A) predation 
B) herbivory 
C) coevolution 
D) optimal foraging 
E) mimicry

Question 3

Which scenario is an example of commensalism? ​

Accepted Answer

A) acacia trees coevolved with ant colonies that protect the tree from herbivores 
B) bacteria provide glucose to legume plants 
C) cattle egrets feed on insects flushed out from the grass by cattle 
D) plants coevolved with their pollinators 
E) tapeworms feed and reproduce in the intestines of pigs 
A) acacia trees coevolved with ant colonies that protect the tree from herbivores 
B) bacteria provide glucose to legume plants 
C) cattle egrets feed on insects flushed out from the grass by cattle 
D) plants coevolved with their pollinators 
E) tapeworms feed and reproduce in the intestines of pigs

Question 4

A cinereous mourner bird's chicks resemble the poisonous larvae of flannel moths. This is an example of____. ​

Accepted Answer

A) aposematic coloration 
B) Müllerian mimicry 
C) competitive exclusion principle 
D) cryptic coloration 
E) Batesian mimicry 
A) aposematic coloration 
B) Müllerian mimicry 
C) competitive exclusion principle 
D) cryptic coloration 
E) Batesian mimicry

Question 5

What is the relationship between species richness and recovery from natural disturbances? ​

Accepted Answer

A) Communities with more diversity do not recover from natural disturbances. 
B) Communities with more diversity experience more natural disturbances. 
C) Communities with more diversity recover less rapidly from natural disturbances. 
D) Communities with more diversity recover more rapidly from natural disturbances. 
E) There is no correlation between community diversity and recovery from natural disturbances. 
A) Communities with more diversity do not recover from natural disturbances. 
B) Communities with more diversity experience more natural disturbances. 
C) Communities with more diversity recover less rapidly from natural disturbances. 
D) Communities with more diversity recover more rapidly from natural disturbances. 
E) There is no correlation between community diversity and recovery from natural disturbances.

Question 6

If cowbird eggs are laid in an oropendola nest that is located near bee hives, what would be the expected outcome? ​

Accepted Answer

A) The cowbird eggs would be ejected from the nest to eliminate the competition. 
B) The cowbird eggs would be ejected from the nest due to a reaction of the mother bird's immune system. 
C) The cowbird eggs would not be ejected from the nest because they provide an additional food source. 
D) The cowbird eggs would not be ejected from the nest because they provide protection from large predators. 
E) The cowbird eggs would not be ejected from the nest because they provide protection from parasites. 
A) The cowbird eggs would be ejected from the nest to eliminate the competition. 
B) The cowbird eggs would be ejected from the nest due to a reaction of the mother bird's immune system. 
C) The cowbird eggs would not be ejected from the nest because they provide an additional food source. 
D) The cowbird eggs would not be ejected from the nest because they provide protection from large predators. 
E) The cowbird eggs would not be ejected from the nest because they provide protection from parasites.

Question 7

An insect lays eggs inside another organism and the young consume the tissues of the living host.  This is an example of a(n)____. ​

Accepted Answer

A) parasite 
B) fundamental niche 
C) parasitoid 
D) mutualist 
E) carnivore 
A) parasite 
B) fundamental niche 
C) parasitoid 
D) mutualist 
E) carnivore

Question 8

A milkweed plant discourages consumption by herbivores by ____. ​

Accepted Answer

A) exuding a toxic sap 
B) developing an appearance that mimics an undesirable plant 
C) having hairy leaves 
D) producing an undesirable scent 
E) having thorns 
A) exuding a toxic sap 
B) developing an appearance that mimics an undesirable plant 
C) having hairy leaves 
D) producing an undesirable scent 
E) having thorns

Question 9

In a study examining the effects of disturbances and recruitment on the growth of coral in a portion of the Great Barrier Reef, researchers concluded that changes in the coral colonies are ____. ​

Accepted Answer

A) due to external factors only. 
B) due to internal factors only. 
C) due to both external and internal factors. 
D) solely due to human interference. 
E) not observable after disturbances 
A) due to external factors only. 
B) due to internal factors only. 
C) due to both external and internal factors. 
D) solely due to human interference. 
E) not observable after disturbances

Question 10

What was the overall effect of removing the predatory sea star Pisaster ochraceus from its food web? ​

Accepted Answer

A) Species richness decreased rapidly. 
B) Species richness increased rapidly. 
C) Species richness stayed the same. 
D) Another predator moved to the top position in the food web. 
E) Mussel populations decreased. 
A) Species richness decreased rapidly. 
B) Species richness increased rapidly. 
C) Species richness stayed the same. 
D) Another predator moved to the top position in the food web. 
E) Mussel populations decreased.

Question 11

Community structure is a result of ____ interactions. ​

Accepted Answer

A) atypical 
B) factorial 
C) only positive 
D) only negative 
E) positive and negative 
A) atypical 
B) factorial 
C) only positive 
D) only negative 
E) positive and negative

Question 12

The range of conditions and resources required by a population is known as its ____, while the range of conditions and resources that it actually uses is known as its ____. ​

Accepted Answer

A) fundamental niche; habitat 
B) trophic level; habitat 
C) realized niche; fundamental niche 
D) fundamental niche; realized niche 
E) ecological niche; trophic level 
A) fundamental niche; habitat 
B) trophic level; habitat 
C) realized niche; fundamental niche 
D) fundamental niche; realized niche 
E) ecological niche; trophic level

Question 13

Match between columns
                        Premises: the resources a population uses, and the environmental conditions it requires

Accepted Answer

The Answer of interference competition and aposematic coloration and exploitative is...

Question 14

Most analyses of population distributions along environmental gradients point toward the individualistic view of communities. ​

Accepted Answer

A) True 
 B)False

Question 15

Aposematic coloring occurs when ____. ​

Accepted Answer

A) coloration serves as a disguise 
B) a harmless species resembles a repellant one 
C) two or more repellant species resemble one another 
D) an individual can increase its size when threatened 
E) repellant species exhibit bright, contrasting patterns 
A) coloration serves as a disguise 
B) a harmless species resembles a repellant one 
C) two or more repellant species resemble one another 
D) an individual can increase its size when threatened 
E) repellant species exhibit bright, contrasting patterns

Question 16

Since all land-dwelling animals utilize oxygen for respiration, does that make oxygen a limiting factor?

Accepted Answer

Even though all land-dwelling

Question 17

Which sequence lists the correct order of dominant plants in the ecological succession in Glacier Bay, Alaska? ​

Accepted Answer

A) lichens and moss, shrubs, young conifers, established spruce and hemlock forests 
B) shrubs, young conifers, lichens and moss, established spruce and hemlock forests 
C) established spruce and hemlock forests, shrubs, young conifers, lichens and moss 
D) established spruce and hemlock forests, young conifers, shrubs, lichens and moss 
E) lichens and moss, shrubs, established spruce and hemlock forests, young conifers 
A) lichens and moss, shrubs, young conifers, established spruce and hemlock forests 
B) shrubs, young conifers, lichens and moss, established spruce and hemlock forests 
C) established spruce and hemlock forests, shrubs, young conifers, lichens and moss 
D) established spruce and hemlock forests, young conifers, shrubs, lichens and moss 
E) lichens and moss, shrubs, established spruce and hemlock forests, young conifers

Question 18

In interference competition , two or more populations use the same limiting resource. ​

Accepted Answer

A) True 
 B)False

Question 19

Which best describes a dominant species? ​

Accepted Answer

A) A dominant species is the only species in an area. 
B) A dominant species has low genetic diversity. 
C) A dominant species has high species richness. 
D) A dominant species has a high relative abundance. 
E) A dominant species has a low relative abundance. 
A) A dominant species is the only species in an area. 
B) A dominant species has low genetic diversity. 
C) A dominant species has high species richness. 
D) A dominant species has a high relative abundance. 
E) A dominant species has a low relative abundance.

Question 20

Which statement best describes parasitism? ​

Accepted Answer

A) A parasite is harmful to the host. 
B) A parasite provides nutrients for the host. 
C) A parasite does not harm the host. 
D) A parasite does not receive any benefits from the host. 
E) A parasite always kills its host. 
A) A parasite is harmful to the host. 
B) A parasite provides nutrients for the host. 
C) A parasite does not harm the host. 
D) A parasite does not receive any benefits from the host. 
E) A parasite always kills its host.

Exam 53: Population Interactions and Community Ecology

An ant species that can live only on acacia trees is an example of ____. ​

An herbivore with the ability to recognize odors and avoid toxic plants is exhibiting evidence of ____. ​

Which scenario is an example of commensalism? ​

A cinereous mourner bird's chicks resemble the poisonous larvae of flannel moths. This is an example of____. ​

What is the relationship between species richness and recovery from natural disturbances? ​

If cowbird eggs are laid in an oropendola nest that is located near bee hives, what would be the expected outcome? ​

An insect lays eggs inside another organism and the young consume the tissues of the living host. This is an example of a(n)____. ​

A milkweed plant discourages consumption by herbivores by ____. ​

In a study examining the effects of disturbances and recruitment on the growth of coral in a portion of the Great Barrier Reef, researchers concluded that changes in the coral colonies are ____. ​

What was the overall effect of removing the predatory sea star Pisaster ochraceus from its food web? ​

Community structure is a result of ____ interactions. ​

The range of conditions and resources required by a population is known as its ____, while the range of conditions and resources that it actually uses is known as its ____. ​

Most analyses of population distributions along environmental gradients point toward the individualistic view of communities. ​

Aposematic coloring occurs when ____. ​

Since all land-dwelling animals utilize oxygen for respiration, does that make oxygen a limiting factor?

Which sequence lists the correct order of dominant plants in the ecological succession in Glacier Bay, Alaska? ​

In interference competition , two or more populations use the same limiting resource. ​

Which best describes a dominant species? ​

Which statement best describes parasitism? ​

Introduction to Biological Concepts and Research

Life, Chemistry, and Water

Biological Molecules: the Carbon Compounds of Life

Cells

Membranes and Transport

Energy, Enzymes, and Biological Reactions

Cellular Respiration: Harvesting Chemical Energy

Photosynthesis

Cell Communication

Cell Division and Mitosis

Meiosis: the Cellular Basis of Sexual Reproduction

Mendel, Genes, and Inheritance

Genes, Chromosomes, and Human Genetics

DNA Structure, Replication, and Organization

From DNA to Protein

Regulation of Gene Expression

Bacterial and Viral Genetics

Dna Technologies: Making and Using Genetically Altered Organisms, and Other Applications

Genomes and Proteomes

The Development of Evolutionary Thought

Microevolution: Genetic Changes Within Populations

Speciation

Paleobiology and Macroevolution

Systematic Biology: Phylogeny and Classification

The Origin of Life

Prokaryotes and Viruses

Protists

Seedless Plants

Seed Plants

Fungi

Animal Phylogeny, Acoelomates, and Protostomes

Deuterostomes: Vertebrates and Their Closest Relatives

The Plant Body

Transport in Plants

Plant Nutrition

Reproduction and Development in Flowering Plants

Plant Signals and Responses to the Environment

Introduction to Animal Organization and Physiology

Information Flow and the Neuron

Nervous Systems

Sensory Systems

The Endocrine System

Muscles, Bones, and Body Movements

The Circulatory System

Defenses Against Disease

Gas Exchange: the Respiratory System

Animal Nutrition

Regulating the Internal Environment

Animal Reproduction

Animal Development

Ecology and the Biosphere

Population Ecology

Ecosystems

Biodiversity and Conservation Biology

Animal Behavior

Filters

An ant species that can live only on acacia trees is an example of ____.

An herbivore with the ability to recognize odors and avoid toxic plants is exhibiting evidence of ____.

Which scenario is an example of commensalism?

A cinereous mourner bird's chicks resemble the poisonous larvae of flannel moths. This is an example of____.

What is the relationship between species richness and recovery from natural disturbances?

If cowbird eggs are laid in an oropendola nest that is located near bee hives, what would be the expected outcome?

An insect lays eggs inside another organism and the young consume the tissues of the living host. This is an example of a(n)____.

A milkweed plant discourages consumption by herbivores by ____.

In a study examining the effects of disturbances and recruitment on the growth of coral in a portion of the Great Barrier Reef, researchers concluded that changes in the coral colonies are ____.

What was the overall effect of removing the predatory sea star Pisaster ochraceus from its food web?

Community structure is a result of ____ interactions.

The range of conditions and resources required by a population is known as its , while the range of conditions and resources that it actually uses is known as its .

Most analyses of population distributions along environmental gradients point toward the individualistic view of communities.

Aposematic coloring occurs when ____.

Which sequence lists the correct order of dominant plants in the ecological succession in Glacier Bay, Alaska?

In interference competition , two or more populations use the same limiting resource.

Which best describes a dominant species?

Which statement best describes parasitism?