Question 1

The largest threat to global biodiversity, as identified by the IUCN, is:

Accepted Answer

A) global warming. 
B) introduced species. 
C) phosphate pollution. 
D) loss of habitat. 
E) lack of farmland. 
A) global warming. 
B) introduced species. 
C) phosphate pollution. 
D) loss of habitat. 
E) lack of farmland.

Question 2

Many marine animal species are threatened because:

Accepted Answer

A) they are overexploited as a human food source. 
B) they are overexploited for the oil and other products in their bodies. 
C) they are caught in nets along with other species being fished. 
D) their habitats, coastal wetlands, are disappearing. 
E) their food sources are disappearing. 
A) they are overexploited as a human food source. 
B) they are overexploited for the oil and other products in their bodies. 
C) they are caught in nets along with other species being fished. 
D) their habitats, coastal wetlands, are disappearing. 
E) their food sources are disappearing.

Question 3

The variety of communities and the nonliving environment upon which the communities depend is the:

Accepted Answer

A) genetic diversity. 
B) conservation biology. 
C) species diversity. 
D) ecosystem services. 
E) ecosystem diversity. 
A) genetic diversity. 
B) conservation biology. 
C) species diversity. 
D) ecosystem services. 
E) ecosystem diversity.

Question 4

Applying ecological economics, how would you decide whether to develop a wetland for vacation property or to preserve it?

Accepted Answer

You would weigh the costs and benefits o

Question 5

In forested areas, the trees reduce evaporation and disrupt the normal water cycle. True or False?

Accepted Answer

A) True 
 B)False

Question 6

Human farming activities began about ________ years ago.

Accepted Answer

A) 400 
B) 5,500 
C) 11,000 
D) 120,000 
E) 500,000 
A) 400 
B) 5,500 
C) 11,000 
D) 120,000 
E) 500,000

Question 7

What is the single most important factor that makes worldwide sustainable development difficult?

Accepted Answer

The size of the human populati

Question 8

The detritivores and decomposers in soil are responsible for recycling nutrients. True or False?

Accepted Answer

A) True 
 B)False

Question 9

The major goal of conservation biology is to:

Accepted Answer

A) preserve the diversity of living organisms. 
B) restore the biosphere to its previously unspoiled condition. 
C) make the biosphere more habitable for humanity. 
D) increase the population sizes of all species. 
E) repair the damage to ecosystems done by introduced species. 
A) preserve the diversity of living organisms. 
B) restore the biosphere to its previously unspoiled condition. 
C) make the biosphere more habitable for humanity. 
D) increase the population sizes of all species. 
E) repair the damage to ecosystems done by introduced species.

Question 10

The single greatest threat to marine life is overfishing. True or False?

Accepted Answer

A) True 
 B)False

Question 11

Plants prevent erosion by:

Accepted Answer

A) holding water. 
B) supporting animals that consume excess water. 
C) blocking winds. 
D) promoting flooding. 
E) recycling nutrients. 
A) holding water. 
B) supporting animals that consume excess water. 
C) blocking winds. 
D) promoting flooding. 
E) recycling nutrients.

Question 12

Buying food that is grown locally supports sustainable agriculture. True or False?

Accepted Answer

A) True 
 B)False

Question 13

Why is the term "sustainable development" nearly an oxymoron?

Accepted Answer

"Development" often means the

Question 14

The ________ of the human species is the area of Earth's surface used to generate resources and process wastes.

Accepted Answer

ecological

Question 15

The conservation organization TAMAR has had some success in protecting sea turtles by:

Accepted Answer

A) restricting access to beaches. 
B) engaging the local community in conservation efforts. 
C) lobbying for legislation that supports their cause. 
D) fundraising in wealthy countries. 
E) increasing the market for turtle eggs. 
A) restricting access to beaches. 
B) engaging the local community in conservation efforts. 
C) lobbying for legislation that supports their cause. 
D) fundraising in wealthy countries. 
E) increasing the market for turtle eggs.

Question 16

Pollutants such as ________ may affect the development or reproduction of organisms.

Accepted Answer

A) estrogen mimics 
B) carbon monoxide 
C) nitrogen 
D) sulfur 
E) water 
A) estrogen mimics 
B) carbon monoxide 
C) nitrogen 
D) sulfur 
E) water

Question 17

Farmers who practice no-till methods commonly use herbicides. True or False?

Accepted Answer

A) True 
 B)False

Question 18

A period in which the extinction rate is far above normal is called a(n)________.

Accepted Answer

The answer of A period in which the extinction rate...

Question 19

How can you, as an individual consumer, conserve energy?

Accepted Answer

Many answers are possible, inc

Question 20

Loss of habitat is a problem for more than ________% of threatened amphibians, mammals, and birds.

Accepted Answer

A) 25 
B) 45 
C) 65 
D) 75 
E) 85 
A) 25 
B) 45 
C) 65 
D) 75 
E) 85

Exam 30: Conserving Earths Biodiversity

The largest threat to global biodiversity, as identified by the IUCN, is:

Many marine animal species are threatened because:

The variety of communities and the nonliving environment upon which the communities depend is the:

Applying ecological economics, how would you decide whether to develop a wetland for vacation property or to preserve it?

In forested areas, the trees reduce evaporation and disrupt the normal water cycle. True or False?

Human farming activities began about ________ years ago.

What is the single most important factor that makes worldwide sustainable development difficult?

The detritivores and decomposers in soil are responsible for recycling nutrients. True or False?

The major goal of conservation biology is to:

The single greatest threat to marine life is overfishing. True or False?

Plants prevent erosion by:

Buying food that is grown locally supports sustainable agriculture. True or False?

Why is the term "sustainable development" nearly an oxymoron?

The ________ of the human species is the area of Earth's surface used to generate resources and process wastes.

The conservation organization TAMAR has had some success in protecting sea turtles by:

Pollutants such as ________ may affect the development or reproduction of organisms.

Farmers who practice no-till methods commonly use herbicides. True or False?

A period in which the extinction rate is far above normal is called a(n)________.

How can you, as an individual consumer, conserve energy?

Loss of habitat is a problem for more than ________% of threatened amphibians, mammals, and birds.

An Introduction to Life on Earth

Atoms, Molecules, and Life

Biological Molecules

Cell Structure and Function

Cell Membrane Structure and Function

Energy Flow in the Life of a Cell

Capturing Solar Energy: Photosynthesis

Harvesting Energy: Glycolysis and Cellular Respiration

The Continuity of Life: Cellular Reproduction

Patterns of Inheritance

Dna: the Molecule of Heredity

Gene Expression and Regulation

Biotechnology

Principles of Evolution

How Populations Evolve

The Origin of Species

The History of Life

Systematics: Seeking Order Amidst Diversity

The Diversity of Prokaryotes and Viruses

The Diversity of Protists

The Diversity of Plants

The Diversity of Fungi

Animal Diversity I: Invertebrates

Animal Diversity Ii: Vertebrates

Animal Behavior

Population Growth and Regulation

Community Interactions

How Do Ecosystems Work

Earths Diverse Ecosystems

Homeostasis and the Organization of the Animal Body

Circulation

Respiration

Nutrition and Digestion

The Urinary System

Defenses Against Disease

Chemical Control of the Animal Body: the Endocrine System

The Nervous System

The Senses

Action and Support: the Muscles and Skeleton

Animal Reproduction

Animal Development

Plant Anatomy and Nutrient Transport

Plant Reproduction and Development

Plant Responses to the Environment

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