Question 1

Which of the following refers to the reflecting and absorption of infrared radiation by atmospheric methane,carbon dioxide,and water?

Accepted Answer

A) acid precipitation 
B) biological magnification 
C) greenhouse effect 
D) eutrophication 
A) acid precipitation 
B) biological magnification 
C) greenhouse effect 
D) eutrophication

Question 2

Which statement is true with regard to the rate of current human population growth?

Accepted Answer

A) It is at a zero growth rate. 
B) There is exponential increase. 
C) Its rate of growth is slowing. 
D) Its rate of growth is increasing. 
A) It is at a zero growth rate. 
B) There is exponential increase. 
C) Its rate of growth is slowing. 
D) Its rate of growth is increasing.

Question 3

What is the single greatest threat to biodiversity?

Accepted Answer

A) overharvesting of commercially important species 
B) habitat alteration,fragmentation,and destruction 
C) introduced species that compete with native species 
D) pollution of Earth's atmosphere,freshwater,and soil 
A) overharvesting of commercially important species 
B) habitat alteration,fragmentation,and destruction 
C) introduced species that compete with native species 
D) pollution of Earth's atmosphere,freshwater,and soil

Question 4

The primary difference between the small-population approach (S-PA)and the declining-population approach (D-PA)to biodiversity recovery is

Accepted Answer

A) S-PA is interested in bolstering the genetic diversity of a threatened population rather than the environmental factors that caused the population's decline. 
B) D-PA would likely involve bringing together individuals from scattered small populations to interbreed in order to promote genetic diversity. 
C) S-PA would investigate and eliminate all of the human impacts on the habitat of the species being studied for recovery. 
D) D-PA would use recently collected population data to calculate an effective population size. 
A) S-PA is interested in bolstering the genetic diversity of a threatened population rather than the environmental factors that caused the population's decline. 
B) D-PA would likely involve bringing together individuals from scattered small populations to interbreed in order to promote genetic diversity. 
C) S-PA would investigate and eliminate all of the human impacts on the habitat of the species being studied for recovery. 
D) D-PA would use recently collected population data to calculate an effective population size.

Question 5

Agricultural lands frequently require nutrient augmentation because

Accepted Answer

A) pesticide use has decreased the nitrogen-fixing bacteria population in the soil. 
B) nutrients in plant biomass are not returned to the same soil where they are harvested. 
C) grains raised for feeding livestock must be fortified and thus require extra nutrients. 
D) cultivation of agricultural land inhibits the decomposition of organic matter. 
A) pesticide use has decreased the nitrogen-fixing bacteria population in the soil. 
B) nutrients in plant biomass are not returned to the same soil where they are harvested. 
C) grains raised for feeding livestock must be fortified and thus require extra nutrients. 
D) cultivation of agricultural land inhibits the decomposition of organic matter.

Question 6

Which of the following is a consequence of biological magnification?

Accepted Answer

A) Toxic chemicals in the environment pose greater risk to top-level predators than to primary consumers. 
B) Populations of top-level predators are generally smaller than populations of primary consumers. 
C) The biomass of producers in an ecosystem is generally higher than the biomass of primary consumers. 
D) Only a small portion of the energy captured by primary producers is transferred to primary consumers. 
A) Toxic chemicals in the environment pose greater risk to top-level predators than to primary consumers. 
B) Populations of top-level predators are generally smaller than populations of primary consumers. 
C) The biomass of producers in an ecosystem is generally higher than the biomass of primary consumers. 
D) Only a small portion of the energy captured by primary producers is transferred to primary consumers.

Question 7

Managing southeastern forests specifically for the red-cockaded woodpecker

Accepted Answer

A) required the growth of a dense understory of trees and shrubs. 
B) included providing nesting cavities for breeding groups. 
C) caused other species of songbird to decline in population. 
D) involved the creation of fragmented forest habitat. 
A) required the growth of a dense understory of trees and shrubs. 
B) included providing nesting cavities for breeding groups. 
C) caused other species of songbird to decline in population. 
D) involved the creation of fragmented forest habitat.

Question 8

What is our natural appreciation of wild environments and living organisms called?

Accepted Answer

A) biodiversity 
B) biophilia 
C) conservation 
D) ecology 
A) biodiversity 
B) biophilia 
C) conservation 
D) ecology

Question 9

How might the extinction of some Pacific Island bats called flying foxes threaten the survival of over 75% of the tree species in those islands?

Accepted Answer

A) Flying foxes protect trees from invasive herbivores. 
B) Flying foxes are increasingly hunted as a luxury food. 
C) Flying foxes spread disease between trees in a population. 
D) Flying foxes pollinate tree flowers and disperse seeds. 
A) Flying foxes protect trees from invasive herbivores. 
B) Flying foxes are increasingly hunted as a luxury food. 
C) Flying foxes spread disease between trees in a population. 
D) Flying foxes pollinate tree flowers and disperse seeds.

Question 10

Which of the following nations has become a world leader in the establishment of zoned reserves?

Accepted Answer

A) Costa Rica 
B) Canada 
C) China 
D) United States 
E) Mexico 
A) Costa Rica 
B) Canada 
C) China 
D) United States 
E) Mexico

Question 11

Which of the following can potentially influence effective population size (Ne)?

Accepted Answer

A) length of life span after reproduction 
B) body size of individual members 
C) number of alleles per each trait 
D) genetic relatedness of members 
A) length of life span after reproduction 
B) body size of individual members 
C) number of alleles per each trait 
D) genetic relatedness of members

Exam 43: Conservation Biology and Global Change

Which of the following refers to the reflecting and absorption of infrared radiation by atmospheric methane,carbon dioxide,and water?

Which statement is true with regard to the rate of current human population growth?

What is the single greatest threat to biodiversity?

The primary difference between the small-population approach (S-PA)and the declining-population approach (D-PA)to biodiversity recovery is

Agricultural lands frequently require nutrient augmentation because

Which of the following is a consequence of biological magnification?

Managing southeastern forests specifically for the red-cockaded woodpecker

What is our natural appreciation of wild environments and living organisms called?

How might the extinction of some Pacific Island bats called flying foxes threaten the survival of over 75% of the tree species in those islands?

Which of the following nations has become a world leader in the establishment of zoned reserves?

Which of the following can potentially influence effective population size (Ne)?

Introduction: Evolution and the Foundations of Biology

The Chemical Context of Life

Carbon and the Molecular Diversity of Life

A Tour of the Cell

Membrane Transport and Cell Signaling

An Introduction to Metabolism

Cellular Respiration and Fermentation

Photosynthesis

The Cell Cycle

Meiosis and Sexual Life Cycles

Mendel and the Gene Idea

The Chromosomal Basis of Inheritance

The Molecular Basis of Inheritance

Gene Expression: From Gene to Protein

Regulation of Gene Expression

Development,stem Cells,and Cancer

Viruses

Genomes and Their Evolution

Descent With Modification

Phylogeny

The Evolution of Populations

The Origin of Species

Broad Patterns of Evolution

Early Life and the Diversification of Prokaryotes

The Origin and Diversification of Eukaryotes

The Colonization of Land by Plants and Fungi

The Rise of Animal Diversity

Plant Structure and Growth

Resource Acquisition,nutrition,and Transport in Vascular Plants

Reproduction and Domestication of Flowering Plants

Plant Responses to Internal and External Signals

Homeostasis and Endocrine Signaling

Animal Nutrition

Circulation and Gas Exchange

The Immune System

Reproduction and Development

Neurons,synapses,and Signaling

Nervous and Sensory Systems

Motor Mechanisms and Behavior

Population Ecology and the Distribution of Organisms

Ecological Communities

Ecosystems and Energy

Filters

Which of the following can potentially influence effective population size (N_e)?