Question 1

Maintaining the ozone layer is crucial for life because ozone

Accepted Answer

A)  absorbs low-energy UV radiation. 
B)  absorbs visible light. 
C)  absorbs high-energy UV radiation. 
D)  blocks low-energy infrared radiation. 
E)  blocks high-energy infrared radiation. 
A)  absorbs low-energy UV radiation. 
B)  absorbs visible light. 
C)  absorbs high-energy UV radiation. 
D)  blocks low-energy infrared radiation. 
E)  blocks high-energy infrared radiation.

Question 2

In the unique seafloor vent community, the primary producers are

Accepted Answer

A)  phytoplankton. 
B)  plants. 
C)  giant snails. 
D)  sulfur bacteria. 
E)  tube worms. 
A)  phytoplankton. 
B)  plants. 
C)  giant snails. 
D)  sulfur bacteria. 
E)  tube worms.

Question 3

In what biome do plants tend to be evenly spaced with large, shallow root systems? Why?

Accepted Answer

In deserts, water is very scarce, and in

Question 4

Rain-forest soils store large amounts of nutrients, which makes them ideal for farming.

Accepted Answer

A) True 
 B)False

Question 5

Oligotrophic lakes are characterized by

Accepted Answer

A)  high nutrient levels, murky water, and shallow penetration of light. 
B)  low nutrient levels, and clear water with deep penetration of light. 
C)  dense ʺbloomsʺ of algae. 
D)  the largest number and diversity of organisms. 
E)  low oxygen concentrations. 
A)  high nutrient levels, murky water, and shallow penetration of light. 
B)  low nutrient levels, and clear water with deep penetration of light. 
C)  dense ʺbloomsʺ of algae. 
D)  the largest number and diversity of organisms. 
E)  low oxygen concentrations.

Question 6

What are the fundamental resources required to support life?

Accepted Answer

A)  Oxygen, water, energy, carbon 
B)  Nutrients, oxygen, sugar, appropriate temperatures 
C)  Water, nutrients, energy, appropriate temperatures 
D)  Oxygen, carbon, nitrogen, water 
E)  Water, energy, oxygen, nutrients 
A)  Oxygen, water, energy, carbon 
B)  Nutrients, oxygen, sugar, appropriate temperatures 
C)  Water, nutrients, energy, appropriate temperatures 
D)  Oxygen, carbon, nitrogen, water 
E)  Water, energy, oxygen, nutrients

Question 7

Which biome receives the lowest annual rainfall?

Accepted Answer

A)  Savanna 
B)  Chaparral 
C)  Tropical rain forest 
D)  Desert 
E)  Tropical deciduous forest 
A)  Savanna 
B)  Chaparral 
C)  Tropical rain forest 
D)  Desert 
E)  Tropical deciduous forest

Question 8

-What biome would you expect to find at 30° N latitude and elevations of 1,500 meters?

Accepted Answer

A)  Ice and snow 
B)  Coniferous forest 
C)  Deciduous forest 
D)  Tropical scrub forest 
E)  Tundra 
A)  Ice and snow 
B)  Coniferous forest 
C)  Deciduous forest 
D)  Tropical scrub forest 
E)  Tundra

Question 9

The primary driving force behind winds, ocean currents, and the global water cycle is

Accepted Answer

A)  Earthʹs magnetic field. 
B)  geothermal heating from beneath Earthʹs surface. 
C)  heat produced by the sun. 
D)  Earthʹs rotation. 
E)  the gravitational pull of the moon. 
A)  Earthʹs magnetic field. 
B)  geothermal heating from beneath Earthʹs surface. 
C)  heat produced by the sun. 
D)  Earthʹs rotation. 
E)  the gravitational pull of the moon.

Question 10

Coral reefs have formed as the result of

Accepted Answer

A)  cool water settling over warmer water. 
B)  rising ocean levels. 
C)  seafloor settling. 
D)  volcanic activity in warm tropical waters. 
E)  skeletons from some types of Cnidarians and algae. 
A)  cool water settling over warmer water. 
B)  rising ocean levels. 
C)  seafloor settling. 
D)  volcanic activity in warm tropical waters. 
E)  skeletons from some types of Cnidarians and algae.

Question 11

Explain why climate is the primary factor determining the type of ecosystem in an area.

Accepted Answer

Climate is determined by sunlight, water

Question 12

Throughout history, some of the best farmland has been the flat areas along rivers. Why?

Accepted Answer

These floodplain areas receive

Question 13

Which biome probably contains the largest number and most diverse group of large mammals?

Accepted Answer

A)  Desert 
B)  Tropical rain forest 
C)  Tropical deciduous forest 
D)  Savanna 
E)  Chaparral 
A)  Desert 
B)  Tropical rain forest 
C)  Tropical deciduous forest 
D)  Savanna 
E)  Chaparral

Question 14

_________are large areas that have similar environmental conditions and characteristic plant communities.

Accepted Answer

A)  Climatic zones 
B)  Ecosystems 
C)  Biomes 
D)  Climax communities 
E)  Biospheres 
A)  Climatic zones 
B)  Ecosystems 
C)  Biomes 
D)  Climax communities 
E)  Biospheres

Question 15

What are the major limiting factors that determine the distribution of organisms in aquatic ecosystems?

Accepted Answer

A)  Appropriate temperatures and excess water 
B)  Light and nutrients 
C)  Excess water and nutrients 
D)  Light and excess water 
E)  Availability of water and appropriate temperatures 
A)  Appropriate temperatures and excess water 
B)  Light and nutrients 
C)  Excess water and nutrients 
D)  Light and excess water 
E)  Availability of water and appropriate temperatures

Question 16

Why are mountaintops colder than valley bottoms?

Accepted Answer

The atmosphere is th

Question 17

The windward side of a mountain range has the drier climate because of the rain shadow.

Accepted Answer

A) True 
 B)False

Question 18

Scientists observing coral-reef communities have noted declines in coral reefs in regions that have both agricultural runoff and rising water temperatures. What are the possible reasons for these observations?

Accepted Answer

Agricultural runoff may cause eutrophica

Question 19

A(n)_________ is a cold region with evergreen coniferous trees as the dominant vegetation.

Accepted Answer

A)  savanna 
B)  chaparral 
C)  tundra 
D)  arctic 
E)  northern coniferous forest 
A)  savanna 
B)  chaparral 
C)  tundra 
D)  arctic 
E)  northern coniferous forest

Question 20

Why are most of the trees in temperate rain forests evergreens?

Accepted Answer

There is abundant precipitatio

Exam 30: Earths Diverse Ecosystems

Maintaining the ozone layer is crucial for life because ozone

In the unique seafloor vent community, the primary producers are

In what biome do plants tend to be evenly spaced with large, shallow root systems? Why?

Rain-forest soils store large amounts of nutrients, which makes them ideal for farming.

Oligotrophic lakes are characterized by

What are the fundamental resources required to support life?

Which biome receives the lowest annual rainfall?

-What biome would you expect to find at 30° N latitude and elevations of 1,500 meters?

The primary driving force behind winds, ocean currents, and the global water cycle is

Coral reefs have formed as the result of

Explain why climate is the primary factor determining the type of ecosystem in an area.

Throughout history, some of the best farmland has been the flat areas along rivers. Why?

Which biome probably contains the largest number and most diverse group of large mammals?

_________are large areas that have similar environmental conditions and characteristic plant communities.

What are the major limiting factors that determine the distribution of organisms in aquatic ecosystems?

Why are mountaintops colder than valley bottoms?

The windward side of a mountain range has the drier climate because of the rain shadow.

Scientists observing coral-reef communities have noted declines in coral reefs in regions that have both agricultural runoff and rising water temperatures. What are the possible reasons for these observations?

A(n)_________ is a cold region with evergreen coniferous trees as the dominant vegetation.

Why are most of the trees in temperate rain forests evergreens?

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

Conserving Earths Biodiversity

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

Filters