Question 1

Biodiversity is higher in the surface region of the ocean rather than the bottom region.

Accepted Answer

A) True 
 B)False

Question 2

A serious problem that is faced in protecting ocean biodiversity is our lack of data on all of the following except

Accepted Answer

A) how ocean ecosystems work 
B) how increasing levels of pollution affect species 
C) the effect of rising acidity in the oceans 
D) the effect of increasing water temperature 
E) the effect of hurricanes on shorelines 
A) how ocean ecosystems work 
B) how increasing levels of pollution affect species 
C) the effect of rising acidity in the oceans 
D) the effect of increasing water temperature 
E) the effect of hurricanes on shorelines

Question 3

Which of the following has the most destructive effects on ocean-floor ecosystems?

Accepted Answer

A) purse-seine 
B) long-lining 
C) trawler fishing 
D) gill nets 
E) drift-netting 
A) purse-seine 
B) long-lining 
C) trawler fishing 
D) gill nets 
E) drift-netting

Question 4

Four of the following areas are places where 90% of all the ocean's fish spawn; one is not such an area.Choose the one that is not.

Accepted Answer

A) coral reefs 
B) mangrove forests 
C) coastal wetlands 
D) ocean bottom 
E) rivers 
A) coral reefs 
B) mangrove forests 
C) coastal wetlands 
D) ocean bottom 
E) rivers

Question 5

Approximately 99.9% of the world's oceans are not effectively protected from harmful human activities.

Accepted Answer

A) True 
 B)False

Question 6

All the nations of the world are overfishing the world's global oceans, taking _____ more than the sustainable yield of fish.

Accepted Answer

A) 10% 
B) 28% 
C) 42% 
D) 57% 
E) 75% 
A) 10% 
B) 28% 
C) 42% 
D) 57% 
E) 75%

Question 7

The direct threat of climate change to marine habitat is

Accepted Answer

A) increase in carbon storage in oceans 
B) spread of tropical diseases 
C) decreased salinity of water 
D) rising sea levels 
E) UV radiation from ozone depletion 
A) increase in carbon storage in oceans 
B) spread of tropical diseases 
C) decreased salinity of water 
D) rising sea levels 
E) UV radiation from ozone depletion

Question 8

Marine and freshwater fishes are threatened with extinction by human activities more than any other group of species.

Accepted Answer

A) True 
 B)False

Question 9

Bioinvaders cost the United States approximately how much per hour?

Accepted Answer

A) $10,000 
B) $133,000 
C) $1,135,000 
D) $16,000,000 
E) $160,000,000 
A) $10,000 
B) $133,000 
C) $1,135,000 
D) $16,000,000 
E) $160,000,000

Question 10

Biodiversity is generally higher in the _______________ region of the ocean than in the _______________ region because of the greater variety of habitats and food sources.

Accepted Answer

The answer of Biodiversity is generally higher in the _______________...

Question 11

Ecological Services of rivers include all of the following except

Accepted Answer

A) deliver nutrient to seas to help sustain fisheries 
B) purify water 
C) renew and renourish wetlands 
D) remove silt that accumulates in deltas 
E) provide habitats for wildlife 
A) deliver nutrient to seas to help sustain fisheries 
B) purify water 
C) renew and renourish wetlands 
D) remove silt that accumulates in deltas 
E) provide habitats for wildlife

Question 12

Nine Pacific Northwest salmon species are listed as endangered or threatened.

Accepted Answer

A) True 
 B)False

Question 13

World governments give approximately $30─34 billion in subsidies yearly to fishers.

Accepted Answer

A) True 
 B)False

Question 14

Sustaining freshwater aquatic systems begins by realizing whatever we do on land, as well as what we do in the water, has some effect on those systems.

Accepted Answer

A) True 
 B)False

Question 15

Humans have explored only about ____________________% of the earth's global ocean and know little about its biodiversity.

Accepted Answer

The answer of Humans have explored only about ____________________% of...

Question 16

Human input of which of the following, mostly from fertilizers, has doubled since 1860 and causes eutrophication of marine and freshwater systems?

Accepted Answer

A) carbon 
B) hydrogen 
C) nitrogen 
D) oxygen 
E) sulfur 
A) carbon 
B) hydrogen 
C) nitrogen 
D) oxygen 
E) sulfur

Question 17

What is CITES?

Accepted Answer

A) software for producing bibliographies 
B) a treaty banning trade in endangered species 
C) a treaty banning barrier island development 
D) a treaty banning overfishing 
E) a treaty banning gill nets 
A) software for producing bibliographies 
B) a treaty banning trade in endangered species 
C) a treaty banning barrier island development 
D) a treaty banning overfishing 
E) a treaty banning gill nets

Question 18

A United States federal policy known as ____________________ allows destruction of existing wetlands as long as an equal area of the same type of wetland is created or restored.

Accepted Answer

The answer of A United States federal policy known as...

Question 19

Invasive species are blamed for about ____________________ of fish extinctions in the United States between 1900 and 2000.

Accepted Answer

The answer of Invasive species are blamed for about ____________________...

Question 20

A five year study of European fulmars indicated that in 2009 what percentage of the seabirds had plastic in their stomachs?

Accepted Answer

A) 5% 
B) 15% 
C) 25% 
D) 75% 
E) 95% 
A) 5% 
B) 15% 
C) 25% 
D) 75% 
E) 95%

Exam 11: Sustaining Aquatic Biodiversity

Biodiversity is higher in the surface region of the ocean rather than the bottom region.

A serious problem that is faced in protecting ocean biodiversity is our lack of data on all of the following except

Which of the following has the most destructive effects on ocean-floor ecosystems?

Four of the following areas are places where 90% of all the ocean's fish spawn; one is not such an area.Choose the one that is not.

Approximately 99.9% of the world's oceans are not effectively protected from harmful human activities.

All the nations of the world are overfishing the world's global oceans, taking _____ more than the sustainable yield of fish.

The direct threat of climate change to marine habitat is

Marine and freshwater fishes are threatened with extinction by human activities more than any other group of species.

Bioinvaders cost the United States approximately how much per hour?

Biodiversity is generally higher in the _______________ region of the ocean than in the _______________ region because of the greater variety of habitats and food sources.

Ecological Services of rivers include all of the following except

Nine Pacific Northwest salmon species are listed as endangered or threatened.

World governments give approximately $30─34 billion in subsidies yearly to fishers.

Sustaining freshwater aquatic systems begins by realizing whatever we do on land, as well as what we do in the water, has some effect on those systems.

Humans have explored only about ____________________% of the earth's global ocean and know little about its biodiversity.

Human input of which of the following, mostly from fertilizers, has doubled since 1860 and causes eutrophication of marine and freshwater systems?

What is CITES?

A United States federal policy known as ____________________ allows destruction of existing wetlands as long as an equal area of the same type of wetland is created or restored.

Invasive species are blamed for about ____________________ of fish extinctions in the United States between 1900 and 2000.

A five year study of European fulmars indicated that in 2009 what percentage of the seabirds had plastic in their stomachs?

Environmental Problems, Their Causes, and Sustainability

Science, Matter, Energy, and Systems

Ecosystems: What Are They and How Do They Work

Biodiversity and Evolution

Biodiversity, Species Interactions, and Population Control

The Human Population and Its Impact

Climate and Biodiversity

Aquatic Biodiversity

Sustaining Biodiversity: the Species Approach

Sustaining Terrestrial Biodiversity: the Ecosystem Approach

Food, Soil, and Pest Management

Water Resources

Geology and Nonrenewable Mineral Resources

Nonrenewable Energy

Energy Efficiency and Renewable Energy

Environmental Hazards and Human Health

Air Pollution

Climate Disruption and Ozone Depletion

Water Pollution

Solid and Hazardous Waste

Cities and Sustainability

Economics, Environment, and Sustainability

Politics, Environment, and Sustainability

Environmental Worldviews, Ethics, and Sustainability

Filters

Biodiversity is generally higher in the _ region of the ocean than in the _ region because of the greater variety of habitats and food sources.