Question 1

Community resistance refers to ________.

Accepted Answer

A)  the ability of a community to maintain productivity and other aspects of ecosystem function as conditions change over time and to recover to former levels of productivity or species richness after a disturbance 
B)  the extent to which a community remains unchanged during a disturbance 
C)  how quickly a community recovers following a disturbance 
D)  how many species are in the community 
A)  the ability of a community to maintain productivity and other aspects of ecosystem function as conditions change over time and to recover to former levels of productivity or species richness after a disturbance 
B)  the extent to which a community remains unchanged during a disturbance 
C)  how quickly a community recovers following a disturbance 
D)  how many species are in the community

Question 2

What is the biological significance of genetic diversity between populations?

Accepted Answer

A)  Genes for traits conferring an advantage to local conditions make evolution possible. 
B)  The population that is most fit would survive by competitive exclusion. 
C)  Genetic diversity allows for species stability by preventing speciation. 
D)  Isolated populations become more fit. 
E)  Diseases and parasites are not spread between separated populations. 
A)  Genes for traits conferring an advantage to local conditions make evolution possible. 
B)  The population that is most fit would survive by competitive exclusion. 
C)  Genetic diversity allows for species stability by preventing speciation. 
D)  Isolated populations become more fit. 
E)  Diseases and parasites are not spread between separated populations.

Question 3

Which of the following statements regarding extinction is (are) correct?
I. Only a small percentage of species is immune from extinction.
II. Extinction occurs whether humans interfere or not.
III. Extinctions can be caused indirectly by humans.

Accepted Answer

A)  only I 
B)  only II 
C)  only III 
D)  only II and III 
E)  I, II, and III 
A)  only I 
B)  only II 
C)  only III 
D)  only II and III 
E)  I, II, and III

Exam 54: Biodiversity and Conservation Biology

Community resistance refers to ________.

What is the biological significance of genetic diversity between populations?

Which of the following statements regarding extinction is (are) correct? I. Only a small percentage of species is immune from extinction. II. Extinction occurs whether humans interfere or not. III. Extinctions can be caused indirectly by humans.

Biology and the Tree of Life

Water and Carbon: the Chemical Basis of Life

Protein Structure and Function

Nucleic Acids and the Rna World

An Introduction to Carbohydrates

Ecosystems and Global Ecology

Lipids, Membranes, and the First Cells

Inside the Cell

Energy and Enzymes: an Introduction to Metabolism

Cellular Respiration and Fermentation

Photosynthesis

Cellcell Interactions

The Cell Cycle

Meiosis

Mendel and the Gene

Dna and the Gene: Synthesis and Repair

How Genes Work

Transcription, Rna Processing, and Translation

Control of Gene Expression in Bacteria

Control of Gene Expression in Eukaryotes

The Molecular Revolution: Biotechnology and Beyond

Genes, Development, and Evolution

Evolution by Natural Selection

Evolutionary Processes

Speciation

Phylogenies and the History of Life

Bacteria and Archaea

Protists

Green Algae and Land Plants

Fungi

An Introduction to Animals

Protostome Animals

Deuterostome Animals

Viruses

Plant Form and Function

Water and Sugar Transport in Plants

Plant Nutrition

Plant Sensory Systems, Signals, and Responses

Plant Reproduction and Development

Animal Form and Function

Water and Electrolyte Balance in Animals

Animal Nutrition

Gas Exchange and Circulation

Animal Nervous Systems

Animal Sensory Systems

Animal Movement

Chemical Signals in Animals

Animal Reproduction and Development

The Immune System in Animals

An Introduction to Ecology

Behavioral Ecology

Population Ecology

Community Ecology

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