Question 1

In the temperate rain forest, the establishment of new tree seedlings is limited by the lack of light reaching the forest floor. True or False?

Accepted Answer

A) True 
 B)False

Question 2

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

Accepted Answer

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

Question 3

The major concentrations of life in the oceans are found in:

Accepted Answer

A) the aphotic zone due to high light levels. 
B) deep, large oceans due to high nutrient concentrations. 
C) the oligotrophic zone due to clear and clean water. 
D) regions of upwelling and in shallow coastal waters. 
E) the anoxic zone. 
A) the aphotic zone due to high light levels. 
B) deep, large oceans due to high nutrient concentrations. 
C) the oligotrophic zone due to clear and clean water. 
D) regions of upwelling and in shallow coastal waters. 
E) the anoxic zone.

Question 4

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

Accepted Answer

A) savanna 
B) tundra 
C) taiga 
D) arctic 
E) chaparral 
A) savanna 
B) tundra 
C) taiga 
D) arctic 
E) chaparral

Question 5

If global warming makes the southeastern United States warmer but does not change the amount of rainfall, we might expect to see a shift from the present temperate deciduous forest biome to:

Accepted Answer

A) alpine tundra. 
B) chaparral. 
C) tropical deciduous forest. 
D) taiga. 
E) tropical rain forest. 
A) alpine tundra. 
B) chaparral. 
C) tropical deciduous forest. 
D) taiga. 
E) tropical rain forest.

Question 6

On the basis of nutrient content, a lake that has received large amounts of runoff from farms, feedlots, or sewage is classified as ________.

Accepted Answer

The answer of On the basis of nutrient content, a...

Question 7

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

Accepted Answer

A) availability of water and appropriate temperatures 
B) excess water and nutrients 
C) appropriate temperatures and excess water 
D) light and excess water 
E) light and nutrients 
A) availability of water and appropriate temperatures 
B) excess water and nutrients 
C) appropriate temperatures and excess water 
D) light and excess water 
E) light and nutrients

Question 8

Coral reefs have formed as the result of:

Accepted Answer

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

Question 9

In which biome would you expect to find large numbers of black bears, snowshoe hares, moose, lynx, wolves, and deer?

Accepted Answer

A) tropical rain forest 
B) temperate deciduous forest 
C) savanna 
D) taiga 
E) chaparral 
A) tropical rain forest 
B) temperate deciduous forest 
C) savanna 
D) taiga 
E) chaparral

Question 10

Plants from both the chaparral and the Arctic have waxy coatings even though the temperatures in the two biomes are vastly different. Why?

Accepted Answer

In both biomes, water is available durin

Question 11

In aquatic ecosystems, the highest nutrients levels are found in areas that have:

Accepted Answer

A) the highest light levels. 
B) the lowest light levels. 
C) the highest temperatures. 
D) the fewest sediments. 
E) the lowest oxygen levels. 
A) the highest light levels. 
B) the lowest light levels. 
C) the highest temperatures. 
D) the fewest sediments. 
E) the lowest oxygen levels.

Question 12

The ozone hole over Antarctica and the general lowering of ozone levels elsewhere in the stratosphere have been attributed to the ozone-destroying properties of:

Accepted Answer

A) carbon dioxide and methane. 
B) chlorofluorocarbons. 
C) endocrine-disrupting chemicals. 
D) sulfur dioxide. 
E) nitrogen oxides. 
A) carbon dioxide and methane. 
B) chlorofluorocarbons. 
C) endocrine-disrupting chemicals. 
D) sulfur dioxide. 
E) nitrogen oxides.

Question 13

Why are mountaintops colder than valley bottoms?

Accepted Answer

The atmosphere is th

Question 14

The temperatures at the equator remain warm year-round because:

Accepted Answer

A) Earth's rotation on a tilted axis creates more atmospheric friction at the equator. 
B) Earth's natural curvature places the equator nearer the sun. 
C) the sun shines over the equator more hours in the day. 
D) there are large oceans near the equator that absorb large amounts of heat. 
E) sunlight strikes the equator relatively directly with little seasonal variation. 
A) Earth's rotation on a tilted axis creates more atmospheric friction at the equator. 
B) Earth's natural curvature places the equator nearer the sun. 
C) the sun shines over the equator more hours in the day. 
D) there are large oceans near the equator that absorb large amounts of heat. 
E) sunlight strikes the equator relatively directly with little seasonal variation.

Question 15

In temperate deciduous forests, trees drop their leaves in response to reduced sunlight. True or False?

Accepted Answer

A) True 
 B)False

Question 16

Which biome contains plants that have small leaves coated with protective waxes or reflective hairs that can withstand hot, dry summers and are adapted to fire?

Accepted Answer

A) tropical rain forest 
B) tropical deciduous forest 
C) savanna 
D) desert 
E) chaparral 
A) tropical rain forest 
B) tropical deciduous forest 
C) savanna 
D) desert 
E) chaparral

Question 17

Deciduous trees drop their leaves in response to decreased ________.

Accepted Answer

The answer of Deciduous trees drop their leaves in response...

Question 18

In the unique seafloor vent community, the primary producers are:

Accepted Answer

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

Question 19

What is the dominant vegetation of the savanna?

Accepted Answer

A) trees with waxy needles 
B) grasses 
C) cocoa 
D) trees that lose their leaves 
E) lichens and scrub willows 
A) trees with waxy needles 
B) grasses 
C) cocoa 
D) trees that lose their leaves 
E) lichens and scrub willows

Question 20

During summer in the Northern Hemisphere, Earth's axis is tilted ________ the sun.

Accepted Answer

The answer of During summer in the Northern Hemisphere, Earth's...

Exam 29: Earths Diverse Ecosystems

In the temperate rain forest, the establishment of new tree seedlings is limited by the lack of light reaching the forest floor. True or False?

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

The major concentrations of life in the oceans are found in:

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

If global warming makes the southeastern United States warmer but does not change the amount of rainfall, we might expect to see a shift from the present temperate deciduous forest biome to:

On the basis of nutrient content, a lake that has received large amounts of runoff from farms, feedlots, or sewage is classified as ________.

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

Coral reefs have formed as the result of:

In which biome would you expect to find large numbers of black bears, snowshoe hares, moose, lynx, wolves, and deer?

Plants from both the chaparral and the Arctic have waxy coatings even though the temperatures in the two biomes are vastly different. Why?

In aquatic ecosystems, the highest nutrients levels are found in areas that have:

The ozone hole over Antarctica and the general lowering of ozone levels elsewhere in the stratosphere have been attributed to the ozone-destroying properties of:

Why are mountaintops colder than valley bottoms?

The temperatures at the equator remain warm year-round because:

In temperate deciduous forests, trees drop their leaves in response to reduced sunlight. True or False?

Which biome contains plants that have small leaves coated with protective waxes or reflective hairs that can withstand hot, dry summers and are adapted to fire?

Deciduous trees drop their leaves in response to decreased ________.

In the unique seafloor vent community, the primary producers are:

What is the dominant vegetation of the savanna?

During summer in the Northern Hemisphere, Earth's axis is tilted ________ the sun.

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

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

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