Question 1

Figure 54-1 ​
 
​
In Experimental Condition 1 of the accompanying figure, the distribution of Balanus suggests that:

Accepted Answer

A)  interspecific competition kept Balanus from extending higher into the intertidal area. 
B)  intraspecific competition kept Balanus from extending higher into the intertidal area. 
C)  an unfavorable environmental factor kept Balanus from extending higher into the intertidal area. 
D)  Balanus is less motile than Chthamalus . 
E)  Balanus is more motile than Chthamalus . 
A)  interspecific competition kept Balanus from extending higher into the intertidal area. 
B)  intraspecific competition kept Balanus from extending higher into the intertidal area. 
C)  an unfavorable environmental factor kept Balanus from extending higher into the intertidal area. 
D)  Balanus is less motile than Chthamalus . 
E)  Balanus is more motile than Chthamalus .

Question 2

Which country would be expected to have the greatest species richness per unit area?

Accepted Answer

A)  Japan 
B)  United States 
C)  Brazil 
D)  Canada 
E)  New Zealand 
A)  Japan 
B)  United States 
C)  Brazil 
D)  Canada 
E)  New Zealand

Question 3

Match between columns
                        Premises: Regulate ecosystem function by tropic interactions

Accepted Answer

The Answer of Dominant species and Keystone species and Edge is...

Question 4

Define predation and describe how natural selection shapes the behavior and bodies of both predator and prey. Include a brief discussion of two specific examples.

Accepted Answer

Predation is the consumption of one spec

Question 5

The impact of a keystone species is proportionate to its abundance in an ecosystem.

Accepted Answer

A) True 
 B)False

Question 6

Keystone species:

Accepted Answer

A)  are always symbionts. 
B)  are typically not the most abundant species in the community. 
C)  illustrate secondary succession. 
D)  always form the base of a food chain. 
E)  are only found in tropical communities. 
A)  are always symbionts. 
B)  are typically not the most abundant species in the community. 
C)  illustrate secondary succession. 
D)  always form the base of a food chain. 
E)  are only found in tropical communities.

Question 7

The potential ecological niche of a species is its realized niche.

Accepted Answer

A) True 
 B)False

Question 8

Figure 54-1 ​
 
​
In Experimental Condition 2 of the accompanying figure, the distribution of Chthamalus suggests that:

Accepted Answer

A)  interspecific competition kept Chthamalus from extending lower into the intertidal area. 
B)  intraspecific competition kept Chthamalus from extending lower into the intertidal area. 
C)  a limiting factor kept Chthamalus from extending lower into the intertidal area. 
D)  a barnacle parasite kept Chthamalus from extending lower into the intertidal area. 
E)  predation kept Chthamalus from extending lower into the intertidal area. 
A)  interspecific competition kept Chthamalus from extending lower into the intertidal area. 
B)  intraspecific competition kept Chthamalus from extending lower into the intertidal area. 
C)  a limiting factor kept Chthamalus from extending lower into the intertidal area. 
D)  a barnacle parasite kept Chthamalus from extending lower into the intertidal area. 
E)  predation kept Chthamalus from extending lower into the intertidal area.

Question 9

In one sentence, summarize the intermediate disturbance hypothesis.

Accepted Answer

Species richness is

Question 10

Large-scale experiments conducted in oak forests of the northeastern United States linked bumper acorn crops to booming mouse populations. The conclusion from these experiments is that:

Accepted Answer

A)  increased levels of first trophic level productivity cause an increase in disease vector activities. 
B)  competition can result in a more limited realized niche. 
C)  increased levels of first trophic level productivity cause a decrease in disease vector activities. 
D)  extermination of mouse populations is the most effective way of reducing Lyme disease transmission. 
E)  potential threat of Lyme disease in human beings is eliminated following a bumper crop of acorns. 
A)  increased levels of first trophic level productivity cause an increase in disease vector activities. 
B)  competition can result in a more limited realized niche. 
C)  increased levels of first trophic level productivity cause a decrease in disease vector activities. 
D)  extermination of mouse populations is the most effective way of reducing Lyme disease transmission. 
E)  potential threat of Lyme disease in human beings is eliminated following a bumper crop of acorns.

Question 11

Match between columns
                        Premises: Also known as tropic cascades

Accepted Answer

The Answer of Top-down processes and Keystone species and Bottom-up is...

Exam 54: Community Ecology

Figure 54-1 ​ ​ In Experimental Condition 1 of the accompanying figure, the distribution of Balanus suggests that:

Which country would be expected to have the greatest species richness per unit area?

Define predation and describe how natural selection shapes the behavior and bodies of both predator and prey. Include a brief discussion of two specific examples.

The impact of a keystone species is proportionate to its abundance in an ecosystem.

Keystone species:

The potential ecological niche of a species is its realized niche.

Figure 54-1 ​ ​ In Experimental Condition 2 of the accompanying figure, the distribution of Chthamalus suggests that:

In one sentence, summarize the intermediate disturbance hypothesis.

Large-scale experiments conducted in oak forests of the northeastern United States linked bumper acorn crops to booming mouse populations. The conclusion from these experiments is that:

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

Filters

Figure 54-1 In Experimental Condition 1 of the accompanying figure, the distribution of Balanus suggests that:

Figure 54-1 In Experimental Condition 2 of the accompanying figure, the distribution of Chthamalus suggests that: