Question 1

The water cycle, hydrogen cycle, phosphorous cycle, and sulfur cycle are all ____________________.

Accepted Answer

The answer of The water cycle, hydrogen cycle, phosphorous cycle,...

Question 2

Sulfuric acid and sulfates in the atmosphere are a problem when they

Accepted Answer

A)  are deposited as acid rain 
B)  are deposited in the soil and incorporated into plants as nutrients 
C)  are deposited in ocean waters and return to deep ocean sediments 
D)  are deposited on glaciers in the Arctic 
E)  They are never a problem. 
A)  are deposited as acid rain 
B)  are deposited in the soil and incorporated into plants as nutrients 
C)  are deposited in ocean waters and return to deep ocean sediments 
D)  are deposited on glaciers in the Arctic 
E)  They are never a problem.

Question 3

Food chains and food webs are basically the same thing.

Accepted Answer

A) True 
 B)False

Question 4

Transfer of carbon among organisms depends primarily on

Accepted Answer

A)  fuel combustion and decomposition 
B)  photosynthesis and cellular respiration 
C)  soil bacteria and precipitation 
D)  volcanic activity and organic decay 
E)  the rock cycle 
A)  fuel combustion and decomposition 
B)  photosynthesis and cellular respiration 
C)  soil bacteria and precipitation 
D)  volcanic activity and organic decay 
E)  the rock cycle

Question 5

Nitrogen fixation is accomplished by

Accepted Answer

A)  Legumes 
B)  Bacteria 
C)  Algae 
D)  Protozoa 
E)  round worms 
A)  Legumes 
B)  Bacteria 
C)  Algae 
D)  Protozoa 
E)  round worms

Question 6

All of the following statements describe field research except

Accepted Answer

A)  It involves going into natural settings to observe the structure of ecosystems. 
B)  It is sometimes called "muddy-boots biology". 
C)  It has provided very little in the way of knowledge about ecosystems. 
D)  Most of what we know about ecosystems has come from such research. 
E)  It involves measuring the structure of ecosystems and what happens in them. 
A)  It involves going into natural settings to observe the structure of ecosystems. 
B)  It is sometimes called "muddy-boots biology". 
C)  It has provided very little in the way of knowledge about ecosystems. 
D)  Most of what we know about ecosystems has come from such research. 
E)  It involves measuring the structure of ecosystems and what happens in them.

Question 7

Complex arrangements of feeding patterns in ecosystems are best described as

Accepted Answer

A)  food webs 
B)  food chains 
C)  trophic levels 
D)  pyramids of energy 
E)  trophic chains 
A)  food webs 
B)  food chains 
C)  trophic levels 
D)  pyramids of energy 
E)  trophic chains

Question 8

Water exists as a liquid over a wide range of temperatures because of the lack of attractive forces between its molecules.

Accepted Answer

A) True 
 B)False

Question 9

Ozone, a gaseous O3 molecule that filters out harmful UV radiation, is found in the

Accepted Answer

A)  Troposphere 
B)  Geosphere 
C)  Hydrosphere 
D)  Stratosphere 
E)  Biosphere 
A)  Troposphere 
B)  Geosphere 
C)  Hydrosphere 
D)  Stratosphere 
E)  Biosphere

Question 10

Match the descriptive phrase below with its appropriate cycle.
-Affects global warming

Accepted Answer

A) Hydrologic 
B) Carbon 
C) Nitrogen 
D) phosphorus 
E) sulfur 
A) Hydrologic 
B) Carbon 
C) Nitrogen 
D) phosphorus 
E) sulfur

Question 11

Nitrogen is a major component of all of the following except

Accepted Answer

A)  Proteins 
B)  Nitrates 
C)  Ammonia 
D)  DNA 
E)  Groundwater 
A)  Proteins 
B)  Nitrates 
C)  Ammonia 
D)  DNA 
E)  Groundwater

Question 12

An entomologist is a biologist that has special training in the study of insects. Which of the following groups of detritivores would an entomologist possibly study?

Accepted Answer

A)  Fungi 
B)  Bacteria 
C)  Vultures 
D)  carpenter ants 
E)  Giraffes 
A)  Fungi 
B)  Bacteria 
C)  Vultures 
D)  carpenter ants 
E)  Giraffes

Question 13

CO2 promotes the ____________________ that warms the troposphere.

Accepted Answer

Question 14

The most common gas in the atmosphere is

Accepted Answer

A)  Nitrogen 
B)  carbon dioxide 
C)  Oxygen 
D)  Hydrogen 
E)  Methane 
A)  Nitrogen 
B)  carbon dioxide 
C)  Oxygen 
D)  Hydrogen 
E)  Methane

Question 15

Liquid water changes temperature rapidly because it can store a large amount of heat.

Accepted Answer

A) True 
 B)False

Question 16

There are examples of microbial bacteria that are beneficial to humans.

Accepted Answer

A) True 
 B)False

Question 17

If the producers in an ecosystem capture 40,000 units of energy, assuming average efficiency of energy transfer, how many units of this energy can likely be successfully converted into secondary consumer biomass?

Accepted Answer

A)  40,000 
B)  4,000 
C)  400 
D)  40 
E)  4 
A)  40,000 
B)  4,000 
C)  400 
D)  40 
E)  4

Question 18

Submarines explore the

Accepted Answer

A)  Atmosphere 
B)  Geosphere 
C)  Biosphere 
D)  Hydrosphere 
E)  Troposphere 
A)  Atmosphere 
B)  Geosphere 
C)  Biosphere 
D)  Hydrosphere 
E)  Troposphere

Question 19

Over land, about what percent of the water vapor in the atmosphere comes from water that has transpired from the surface of plants?

Accepted Answer

A)  40-50% 
B)  60% 
C)  70% 
D)  80% 
E)  90% 
A)  40-50% 
B)  60% 
C)  70% 
D)  80% 
E)  90%

Question 20

Highly specialized bacteria are an essential component of the phosphorous cycle.

Accepted Answer

A) True 
 B)False

The water cycle, hydrogen cycle, phosphorous cycle, and sulfur cycle are all ____________________.

Sulfuric acid and sulfates in the atmosphere are a problem when they

Food chains and food webs are basically the same thing.

Transfer of carbon among organisms depends primarily on

Nitrogen fixation is accomplished by

All of the following statements describe field research except

Complex arrangements of feeding patterns in ecosystems are best described as

Water exists as a liquid over a wide range of temperatures because of the lack of attractive forces between its molecules.

Ozone, a gaseous O₃ molecule that filters out harmful UV radiation, is found in the

Match the descriptive phrase below with its appropriate cycle. -Affects global warming

Nitrogen is a major component of all of the following except

An entomologist is a biologist that has special training in the study of insects. Which of the following groups of detritivores would an entomologist possibly study?

CO₂ promotes the ____________________ that warms the troposphere.

The most common gas in the atmosphere is

Liquid water changes temperature rapidly because it can store a large amount of heat.

There are examples of microbial bacteria that are beneficial to humans.

If the producers in an ecosystem capture 40,000 units of energy, assuming average efficiency of energy transfer, how many units of this energy can likely be successfully converted into secondary consumer biomass?

Submarines explore the

Over land, about what percent of the water vapor in the atmosphere comes from water that has transpired from the surface of plants?

Highly specialized bacteria are an essential component of the phosphorous cycle.

Environmental Problems, Their Causes, and Sustainability

Science, Matter, and Energy

Biodiversity and Evolution

Biodiversity, Species Interactions, and Population Control

The Human Population and Urbanization

Climate and Biodiversity

Sustaining Biodiversity: the Species Approach

Sustaining Biodiversity: the Ecosystem Approach

Food, Soil, and Pest Management

Water Resources and Water Pollution

Geology and Nonrenewable Minerals

Energy

Environmental Hazards and Human Health

Air Pollution, Climate Change, and Ozone Depletion

Solid and Hazardous Waste

Environmental Economics, Politics, and Worldviews

Filters

Exam 3: Ecosystems: What Are They and How Do They Work

The water cycle, hydrogen cycle, phosphorous cycle, and sulfur cycle are all ____________________.

Sulfuric acid and sulfates in the atmosphere are a problem when they

Food chains and food webs are basically the same thing.

Transfer of carbon among organisms depends primarily on

Nitrogen fixation is accomplished by

All of the following statements describe field research except

Complex arrangements of feeding patterns in ecosystems are best described as

Water exists as a liquid over a wide range of temperatures because of the lack of attractive forces between its molecules.

Ozone, a gaseous O3 molecule that filters out harmful UV radiation, is found in the

Match the descriptive phrase below with its appropriate cycle. -Affects global warming

Nitrogen is a major component of all of the following except

An entomologist is a biologist that has special training in the study of insects. Which of the following groups of detritivores would an entomologist possibly study?

CO2 promotes the ____________________ that warms the troposphere.

The most common gas in the atmosphere is

Liquid water changes temperature rapidly because it can store a large amount of heat.

There are examples of microbial bacteria that are beneficial to humans.

If the producers in an ecosystem capture 40,000 units of energy, assuming average efficiency of energy transfer, how many units of this energy can likely be successfully converted into secondary consumer biomass?

Submarines explore the

Over land, about what percent of the water vapor in the atmosphere comes from water that has transpired from the surface of plants?

Highly specialized bacteria are an essential component of the phosphorous cycle.

Environmental Problems, Their Causes, and Sustainability

Science, Matter, and Energy

Biodiversity and Evolution

Biodiversity, Species Interactions, and Population Control

The Human Population and Urbanization

Climate and Biodiversity

Sustaining Biodiversity: the Species Approach

Sustaining Biodiversity: the Ecosystem Approach

Food, Soil, and Pest Management

Water Resources and Water Pollution

Geology and Nonrenewable Minerals

Energy

Environmental Hazards and Human Health

Air Pollution, Climate Change, and Ozone Depletion

Solid and Hazardous Waste

Environmental Economics, Politics, and Worldviews

Filters

Ozone, a gaseous O₃ molecule that filters out harmful UV radiation, is found in the

CO₂ promotes the ____________________ that warms the troposphere.