Question 1

According to the competitive exclusion principle, two species cannot continue to occupy the same

Accepted Answer

A) habitat. 
B) niche. 
C) territory. 
D) range. 
E) biome. 
A) habitat. 
B) niche. 
C) territory. 
D) range. 
E) biome.

Question 2

According to the nonequilibrium model

Accepted Answer

A) communities will remain in a climax state if there are no human disturbances. 
B) community structure remains stable in the absence of interspecific competition. 
C) communities are assemblages of closely linked species that are irreparably changed by disturbance. 
D) interspecific interactions induce changes in community composition over time. 
E) communities are constantly changing after being influenced by disturbances. 
A) communities will remain in a climax state if there are no human disturbances. 
B) community structure remains stable in the absence of interspecific competition. 
C) communities are assemblages of closely linked species that are irreparably changed by disturbance. 
D) interspecific interactions induce changes in community composition over time. 
E) communities are constantly changing after being influenced by disturbances.

Question 3

Biomanipulation can best be described as

Accepted Answer

A) removing many of the next higher trophic level organisms so that the struggling trophic level below can recover. 
B) a means of reversing the effects of pollution by applying antidote chemicals that have a neutralizing effect on the community. 
C) an example of how one would use the bottom-up model for community restoration. 
D) adjusting the numbers of each of the trophic levels back to the numbers that they were before human disturbance. 
E) monitoring and adjusting the nutrient and energy flow through a community with new technologies. 
A) removing many of the next higher trophic level organisms so that the struggling trophic level below can recover. 
B) a means of reversing the effects of pollution by applying antidote chemicals that have a neutralizing effect on the community. 
C) an example of how one would use the bottom-up model for community restoration. 
D) adjusting the numbers of each of the trophic levels back to the numbers that they were before human disturbance. 
E) monitoring and adjusting the nutrient and energy flow through a community with new technologies.

Question 4

Zoonotic disease

Accepted Answer

A) is caused by suborganismal pathogens such as viruses, viroids, and prions only. 
B) is caused by pathogens that are transferred from other animals to humans by direct contact or by means of a vector. 
C) can only be spread from animals to humans through direct contact. 
D) can only be transferred from animals to humans by means of an intermediate host. 
E) is too specific to study at the community level, and studies of zoonotic pathogens are relegated to organismal biology. 
A) is caused by suborganismal pathogens such as viruses, viroids, and prions only. 
B) is caused by pathogens that are transferred from other animals to humans by direct contact or by means of a vector. 
C) can only be spread from animals to humans through direct contact. 
D) can only be transferred from animals to humans by means of an intermediate host. 
E) is too specific to study at the community level, and studies of zoonotic pathogens are relegated to organismal biology.

Question 5

According to bottom-up and top-down control models of community organization, which of the following expressions would imply that an increase in the size of a carnivore (C)population would negatively impact on its prey (P)population, but not vice versa?

Accepted Answer

A) P ← C 
B) P → C 
C) C ↔ P 
D) P ← C → P 
E) C ← P → 
A) P ← C 
B) P → C 
C) C ↔ P 
D) P ← C → P 
E) C ← P →

Exam 54: Community Ecology

According to the competitive exclusion principle, two species cannot continue to occupy the same

According to the nonequilibrium model

Biomanipulation can best be described as

Zoonotic disease

According to bottom-up and top-down control models of community organization, which of the following expressions would imply that an increase in the size of a carnivore (C)population would negatively impact on its prey (P)population, but not vice versa?

Introduction: Evolution and Themes of Biology

The Chemical Context of Life

Water and Life

Carbon and the Molecular Diversity of Life

The Structure and Function of Large Biological Molecules

A Tour of the Cell

Membrane Structure and Function

An Introduction to Metabolism

Cellular Respiration and Fermentation

Photosynthesis

Cell Communication

The Cell Cycle

Meiosis and Sexual Life Cycles

Mendel and the Gene Idea

The Chromosomal Basis of Inheritance

The Molecular Basis of Inheritance

From Gene to Protein

Regulation of Gene Expression

Viruses

Dna Tools and Biotechnology

Genomes and Their Evolution

Descent With Modification: a Darwinian View of Life

The Evolution of Populations

The Origin of Species

The History of Life on Earth

Phylogeny and the Tree of Life

Bacteria and Archaea

Protists

Plant Diversity I: How Plants Colonized Land

Plant Diversity Ii: the Evolution of Seed Plants

Fungi

An Overview of Animal Diversity

An Introduction to Invertebrates

The Origin and Evolution of Vertebrates

Plant Structure, Growth, and Development

Resource Acquisition and Transport in Vascular Plants

Soil and Plant Nutrition

Angiosperm Reproduction and Biotechnology

Plant Responses to Internal and External Signals

Basic Principles of Animal Form and Function

Animal Nutrition

Circulation and Gas Exchange

The Immune System

Osmoregulation and Excretion

Hormones and the Endocrine System

Animal Reproduction

Animal Development

Neurons, Synapses, and Signalling

Nervous Systems

Sensory and Motor Mechanisms

Animal Behaviour

An Introduction to Ecology and the Biosphere

Population Ecology

Ecosystems and Restoration Ecology

Conservation Biology and Global Change

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