Question 1

Traditional medicines, which are used by the majority of people in less developed countries, are primarily derived from

Accepted Answer

A)  plants. 
B)  commercially purchased ingredients. 
C)  animals. 
D)  rock. 
E)  water. 
A)  plants. 
B)  commercially purchased ingredients. 
C)  animals. 
D)  rock. 
E)  water.

Question 2

Buying food that is commercially produced supports sustainable agriculture.

Accepted Answer

A) True 
 B)False

Question 3

In less-developed countries, many species are being harvested unsustainably because

Accepted Answer

A)  they are hunted and killed because they carry human diseases. 
B)  they are considered a danger to humans. 
C)  the people must eat or sell the speciesʹ products to survive. 
D)  people thoughtlessly destroy what they do not need. 
E)  pollution has reduced their population sizes dramatically. 
A)  they are hunted and killed because they carry human diseases. 
B)  they are considered a danger to humans. 
C)  the people must eat or sell the speciesʹ products to survive. 
D)  people thoughtlessly destroy what they do not need. 
E)  pollution has reduced their population sizes dramatically.

Question 4

Much of the tropical rain-forest land that has been lost has been used for

Accepted Answer

A)  wildlife preserves. 
B)  farmland. 
C)  recreational areas. 
D)  airfields to support ecotourism. 
E)  human dwellings. 
A)  wildlife preserves. 
B)  farmland. 
C)  recreational areas. 
D)  airfields to support ecotourism. 
E)  human dwellings.

Question 5

Deforestation affects the climate in what way?

Accepted Answer

A)  Decreasing global temperature 
B)  Decreasing the amount of wood available for building shelter 
C)  Decreasing the habitat space for forest-dwelling animals 
D)  Increasing the levels of oxygen 
E)  Increasing the levels of carbon dioxide 
A)  Decreasing global temperature 
B)  Decreasing the amount of wood available for building shelter 
C)  Decreasing the habitat space for forest-dwelling animals 
D)  Increasing the levels of oxygen 
E)  Increasing the levels of carbon dioxide

Question 6

Human population growth poses a threat to sustainable development.

Accepted Answer

A) True 
 B)False

Question 7

What is the difficulty with establishing small, isolated reserve areas for the preservation of threatened species?

Accepted Answer

The species may require large

Question 8

What ecosystem services do wetlands perform?

Accepted Answer

Wetlands neutralize pollutants

Question 9

Plants prevent erosion by

Accepted Answer

A)  promoting flooding. 
B)  blocking winds and stabilizing soil with extensive root systems. 
C)  holding water. 
D)  recycling nutrients. 
E)  supporting animals that consume excess water. 
A)  promoting flooding. 
B)  blocking winds and stabilizing soil with extensive root systems. 
C)  holding water. 
D)  recycling nutrients. 
E)  supporting animals that consume excess water.

Question 10

The minimum viable population is the

Accepted Answer

A)  smallest number of males needed to maintain a population. 
B)  number of organisms that can reproduce in a population. 
C)  smallest number of organisms capable of maintaining a population. 
D)  number of organisms that can be spread over a fragmented habitat. 
E)  number of organisms produced by an inbred population. 
A)  smallest number of males needed to maintain a population. 
B)  number of organisms that can reproduce in a population. 
C)  smallest number of organisms capable of maintaining a population. 
D)  number of organisms that can be spread over a fragmented habitat. 
E)  number of organisms produced by an inbred population.

Question 11

Which types of species are most likely to disappear from fragmented forests?

Accepted Answer

A)  Microbes that reproduce asexually will disappear. 
B)  Species that require large tracts of land to find food and mates will disappear. 
C)  Only animals will disappear; plants do not need much space. 
D)  Species that reproduce in small patches will disappear. 
A)  Microbes that reproduce asexually will disappear. 
B)  Species that require large tracts of land to find food and mates will disappear. 
C)  Only animals will disappear; plants do not need much space. 
D)  Species that reproduce in small patches will disappear.

Question 12

What causes mass extinctions?

Accepted Answer

Several reasons have

Question 13

The leading cause of extinction by human activities worldwide is

Accepted Answer

A)  habitat fragmentation. 
B)  overexploitation. 
C)  invasive species. 
D)  predation. 
E)  pollution. 
A)  habitat fragmentation. 
B)  overexploitation. 
C)  invasive species. 
D)  predation. 
E)  pollution.

Question 14

Wetlands purify water by removing sediments and pollutants.

Accepted Answer

A) True 
 B)False

Question 15

The term_________ describes the variety of living organisms that inhabit Earth.

Accepted Answer

The answer of The term_________ describes the variety of living...

Question 16

Adult sea turtles are primarily threatened by

Accepted Answer

A)  beach development and hunting. 
B)  hunting. 
C)  beach development. 
D)  polluted ocean waters. 
E)  beach development, hunting, and polluted ocean waters. 
A)  beach development and hunting. 
B)  hunting. 
C)  beach development. 
D)  polluted ocean waters. 
E)  beach development, hunting, and polluted ocean waters.

Question 17

-According to the graph, the human population?s biological footprint in 1965 was estimated at

Accepted Answer

A)  0.8 Earth. 
B)  0.5 Earth. 
C)  1 Earth. 
D)  1.2 Earths. 
E)  0.6 Earth. 
A)  0.8 Earth. 
B)  0.5 Earth. 
C)  1 Earth. 
D)  1.2 Earths. 
E)  0.6 Earth.

Question 18

Why is genetic diversity within species important?

Accepted Answer

Genetic diversity allows a spe

Question 19

What are some benefits of sustainable development?

Accepted Answer

Sustainable development promotes long-te

Question 20

Farmers who practice no-till methods commonly use herbicides.

Accepted Answer

A) True 
 B)False

Exam 31: Conserving Earths Biodiversity

Traditional medicines, which are used by the majority of people in less developed countries, are primarily derived from

Buying food that is commercially produced supports sustainable agriculture.

In less-developed countries, many species are being harvested unsustainably because

Much of the tropical rain-forest land that has been lost has been used for

Deforestation affects the climate in what way?

Human population growth poses a threat to sustainable development.

What is the difficulty with establishing small, isolated reserve areas for the preservation of threatened species?

What ecosystem services do wetlands perform?

Plants prevent erosion by

The minimum viable population is the

Which types of species are most likely to disappear from fragmented forests?

What causes mass extinctions?

The leading cause of extinction by human activities worldwide is

Wetlands purify water by removing sediments and pollutants.

The term_________ describes the variety of living organisms that inhabit Earth.

Adult sea turtles are primarily threatened by

-According to the graph, the human population?s biological footprint in 1965 was estimated at

Why is genetic diversity within species important?

What are some benefits of sustainable development?

Farmers who practice no-till methods commonly use herbicides.

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

Cellular Reproduction

Meiosis: the Basis of Sexual 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 Amid 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

Energy Flow and Nutrient Cycling in Ecosystems

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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