Question 1

Increased exposure to UV radiation is expected to increase rates of __________ in humans.

Accepted Answer

A)  cataracts 
B)  glaucoma 
C)  psoriasis 
D)  shingles 
E)  alopecia 
A)  cataracts 
B)  glaucoma 
C)  psoriasis 
D)  shingles 
E)  alopecia

Question 2

Commercial logging:

Accepted Answer

A)  cuts trees primarily for use by developing countries. 
B)  cuts trees for subsistence farmers. 
C)  cuts trees primarily for export. 
D)  is a very sustainable practice in the tropics. 
E)  is most prevalent in temperate deciduous forests. 
A)  cuts trees primarily for use by developing countries. 
B)  cuts trees for subsistence farmers. 
C)  cuts trees primarily for export. 
D)  is a very sustainable practice in the tropics. 
E)  is most prevalent in temperate deciduous forests.

Question 3

An unprotected area of naturally occurring plant and animal assemblages that is surrounded by unsuitable territory due to development or habitat destruction is referred to by biologists as:

Accepted Answer

A)  an island. 
B)  ex situ conservation. 
C)  a reserve. 
D)  a park. 
E)  a refuge. 
A)  an island. 
B)  ex situ conservation. 
C)  a reserve. 
D)  a park. 
E)  a refuge.

Question 4

Climate change occurs because greenhouse gases absorb _______ radiation.

Accepted Answer

A)  UVA 
B)  UVB 
C)  visible 
D)  infrared 
E)  cosmic 
A)  UVA 
B)  UVB 
C)  visible 
D)  infrared 
E)  cosmic

Question 5

Which of the following is not considered a contributor to global warming?

Accepted Answer

A)  carbon dioxide 
B)  chlorofluorocarbons 
C)  nitrous oxide 
D)  ethane 
E)  surface ozone 
A)  carbon dioxide 
B)  chlorofluorocarbons 
C)  nitrous oxide 
D)  ethane 
E)  surface ozone

Question 6

When the death of species is less eminent, but the population of a particular species is quite small, it is defined as being:

Accepted Answer

A)  extinct. 
B)  extant. 
C)  endangered. 
D)  threatened. 
E)  endemic. 
A)  extinct. 
B)  extant. 
C)  endangered. 
D)  threatened. 
E)  endemic.

Question 7

Deforestation:

Accepted Answer

A)  retards soil erosion. 
B)  releases carbon dioxide that may contribute to global warming. 
C)  has no effect on the extinction of biological species. 
D)  promotes the preservation of tropical birds. 
E)  is only a threat to tropical rain forests. 
A)  retards soil erosion. 
B)  releases carbon dioxide that may contribute to global warming. 
C)  has no effect on the extinction of biological species. 
D)  promotes the preservation of tropical birds. 
E)  is only a threat to tropical rain forests.

Question 8

An example of a(n) ecosystem service is the boreal forest contributing to the proper functioning of the global nitrogen cycle.
___________________

Accepted Answer

A) True 
 B)False

Question 9

Today, the major danger to species is:

Accepted Answer

A)  hunting by humans. 
B)  introduction of exotic species. 
C)  destruction of habitats. 
D)  predator control. 
E)  commercial harvesting. 
A)  hunting by humans. 
B)  introduction of exotic species. 
C)  destruction of habitats. 
D)  predator control. 
E)  commercial harvesting.

Question 10

The use of the principles of ecology to return a degraded environment as close as possible to its former state is called:

Accepted Answer

A)  in situ conservation. 
B)  ex situ conservation. 
C)  conservation biology. 
D)  restoration ecology. 
E)  corridor formation. 
A)  in situ conservation. 
B)  ex situ conservation. 
C)  conservation biology. 
D)  restoration ecology. 
E)  corridor formation.

Question 11

The breakup of large areas of habitat into small, isolated patches is called:

Accepted Answer

A)  extinction. 
B)  habitat fragmentation. 
C)  invasive species. 
D)  unsuitable territory. 
E)  habitat endangerment. 
A)  extinction. 
B)  habitat fragmentation. 
C)  invasive species. 
D)  unsuitable territory. 
E)  habitat endangerment.

Question 12

An example of an atom or molecule that directly breaks down O3 is CFC.
___________________

Accepted Answer

A) True 
 B)False

Question 13

When a species' numbers are so severely reduced that it is in imminent danger of extinction throughout all or a significant part of its range, it is called:

Accepted Answer

A)  extinct. 
B)  extant. 
C)  endangered. 
D)  threatened. 
E)  endemic. 
A)  extinct. 
B)  extant. 
C)  endangered. 
D)  threatened. 
E)  endemic.

Question 14

The greenhouse gas presently at highest concentration in the Earth's atmosphere is methane.
___________________

Accepted Answer

A) True 
 B)False

Question 15

Estimates vary, but reasonable estimations of extinction rates suggest that extinction is occurring at a rate approximately __________ above the normal background rate.

Accepted Answer

A)  10 
B)  100 
C)  1000 
D)  10,000 
E)  1,000,000 
A)  10 
B)  100 
C)  1000 
D)  10,000 
E)  1,000,000

Question 16

Identify three greenhouse gases and briefly explain how these gases are contributing to global warming.

Accepted Answer

Although carbon dioxide is the major gre

Question 17

A(n) threatened species is a species in imminent danger of extinction.
___________________

Accepted Answer

A) True 
 B)False

Question 18

Biotic pollution has been particularly harmful to native species:

Accepted Answer

A)  in deserts. 
B)  in tundra. 
C)  on islands. 
D)  in tropical rain forests. 
E)  in grasslands. 
A)  in deserts. 
B)  in tundra. 
C)  on islands. 
D)  in tropical rain forests. 
E)  in grasslands.

Question 19

In __________, fertilized eggs from a rare species may be implanted in a related and less rare species.

Accepted Answer

A)  host mothering 
B)  captive breeding 
C)  artificial insemination 
D)  commercial harvesting 
E)  sperm banking 
A)  host mothering 
B)  captive breeding 
C)  artificial insemination 
D)  commercial harvesting 
E)  sperm banking

Question 20

All of the following are examples of ex situ conservation except:

Accepted Answer

A)  breeding captive species in zoos. 
B)  collecting eggs from nature. 
C)  artificial insemination. 
D)  breeding captive species and collecting eggs from nature. 
E)  designating a large area as a national reserve. 
A)  breeding captive species in zoos. 
B)  collecting eggs from nature. 
C)  artificial insemination. 
D)  breeding captive species and collecting eggs from nature. 
E)  designating a large area as a national reserve.

Exam 57: Biological Diversity and Conservation Biology

Increased exposure to UV radiation is expected to increase rates of __________ in humans.

Commercial logging:

An unprotected area of naturally occurring plant and animal assemblages that is surrounded by unsuitable territory due to development or habitat destruction is referred to by biologists as:

Climate change occurs because greenhouse gases absorb _______ radiation.

Which of the following is not considered a contributor to global warming?

When the death of species is less eminent, but the population of a particular species is quite small, it is defined as being:

Deforestation:

An example of a(n) ecosystem service is the boreal forest contributing to the proper functioning of the global nitrogen cycle. ___________________

Today, the major danger to species is:

The use of the principles of ecology to return a degraded environment as close as possible to its former state is called:

The breakup of large areas of habitat into small, isolated patches is called:

An example of an atom or molecule that directly breaks down O3 is CFC. ___________________

When a species' numbers are so severely reduced that it is in imminent danger of extinction throughout all or a significant part of its range, it is called:

The greenhouse gas presently at highest concentration in the Earth's atmosphere is methane. ___________________

Estimates vary, but reasonable estimations of extinction rates suggest that extinction is occurring at a rate approximately __________ above the normal background rate.

Identify three greenhouse gases and briefly explain how these gases are contributing to global warming.

A(n) threatened species is a species in imminent danger of extinction. ___________________

Biotic pollution has been particularly harmful to native species:

In __________, fertilized eggs from a rare species may be implanted in a related and less rare species.

All of the following are examples of ex situ conservation except:

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

Community Ecology

Ecosystems and the Biosphere

Ecology and the Geography of Life

Filters

An example of an atom or molecule that directly breaks down O₃ is CFC. ___________________