Question 1

Where would photosynthetic efficiency be lowest?

Accepted Answer

A)  A conifer forest 
B)  A deciduous forest 
C)  A tropical rain forest 
D)  A desert 
A)  A conifer forest 
B)  A deciduous forest 
C)  A tropical rain forest 
D)  A desert D

Question 2

If the cumulative mass of organisms in a biome was hypothetically held constant,but the area of the biome was reduced,how would biomass be affected?

Accepted Answer

A)  It would not be affected 
B)  Biomass would decrease because it is proportional to area 
C)  Biomass would increase because it is per unit area 
D)  Biomass would decrease because it is per unit area 
A)  It would not be affected 
B)  Biomass would decrease because it is proportional to area 
C)  Biomass would increase because it is per unit area 
D)  Biomass would decrease because it is per unit area C

Question 3

Which of the following statements are correct regarding nitrogen fixation in subtropical ocean gyres?

Accepted Answer

A)  Nitrogen fixation does occur in subtropical ocean gyres 
B)  Nitrogen fixation does NOT occur in subtropical ocean gyres 
C)  Sulfate reduces the rate of nitrogen fixation in subtropical ocean gyres 
D)  Phytoplankton in subtropical ocean gyres are small but highly abundant 
A)  Nitrogen fixation does occur in subtropical ocean gyres 
B)  Nitrogen fixation does NOT occur in subtropical ocean gyres 
C)  Sulfate reduces the rate of nitrogen fixation in subtropical ocean gyres 
D)  Phytoplankton in subtropical ocean gyres are small but highly abundant A,C,D

Question 4

In general,where would net primary productivity be regulated more by the availability of nutrients?

Accepted Answer

A)  In a savanna 
B)  In a lake 
C)  In a desert 
D)  On mountains 
A)  In a savanna 
B)  In a lake 
C)  In a desert 
D)  On mountains

Question 5

Which of the following is an accurate definition of primary productivity?

Accepted Answer

A)  The rate at which a standing crop is produced or the volume at which plants photosynthesize. 
B)  The rate at which biomass is produced per unit area or volume through photosynthesis 
C)  The formation of essential plant structures 
D)  The rate of formation of essential plant structures over a photosynthetic period. 
A)  The rate at which a standing crop is produced or the volume at which plants photosynthesize. 
B)  The rate at which biomass is produced per unit area or volume through photosynthesis 
C)  The formation of essential plant structures 
D)  The rate of formation of essential plant structures over a photosynthetic period.

Question 6

Which of the following choices refers to the rate of production of biomass by heterotrophs?

Accepted Answer

A)  Biomass 
B)  Net primary productivity 
C)  Net ecosystem productivity 
D)  Secondary productivity 
A)  Biomass 
B)  Net primary productivity 
C)  Net ecosystem productivity 
D)  Secondary productivity

Question 7

Which of the following choices refers to the rate of production of new biomass that would be available for consumption by bacteria,fungi,or animals?

Accepted Answer

A)  Net primary productivity 
B)  Gross primary productivity 
C)  Secondary productivity 
D)  Net ecosystem productivity 
A)  Net primary productivity 
B)  Gross primary productivity 
C)  Secondary productivity 
D)  Net ecosystem productivity

Question 8

Which of the following terms refers to the mass of organisms per unit area?

Accepted Answer

A)  Gross primary productivity 
B)  Biomass 
C)  Standing crop 
D)  Carrying capacity 
A)  Gross primary productivity 
B)  Biomass 
C)  Standing crop 
D)  Carrying capacity

Question 9

Which biome has the greatest overall NPP?

Accepted Answer

A)  Tropical rain forest 
B)  Tundra 
C)  Tropical savanna 
D)  Temperate forest 
A)  Tropical rain forest 
B)  Tundra 
C)  Tropical savanna 
D)  Temperate forest

Question 10

____________ occurs when bacteria convert ammonium to nitrate.

Accepted Answer

A)  The nitrogen cycle 
B)  Nitrification 
C)  Salinization 
D)  Assimilation 
A)  The nitrogen cycle 
B)  Nitrification 
C)  Salinization 
D)  Assimilation

Question 11

There are a range of mutualistic interactions between detritivores and bacteria,fungi,or protozoa.These include _______?

Accepted Answer

A)  Obligate and facultative mutualisms 
B)  Facultative and commensurate mutualisms 
C)  Obligate and facultative mutualisms, plus external rumens 
D)  External rumens and obligate mutualism 
A)  Obligate and facultative mutualisms 
B)  Facultative and commensurate mutualisms 
C)  Obligate and facultative mutualisms, plus external rumens 
D)  External rumens and obligate mutualism

Question 12

Using Figure 11.15a,which of the following are correct?

Accepted Answer

A)  The majority of ecosystems where OEC is moderately to highly eutrophic are primarily found along the Pacific Coast 
B)  The majority of ecosystems where OEC is moderately to highly eutrophic are primarily found along the Atlantic and Gulf coasts 
C)  The Florida Atlantic coast region has more ecosystems with high OEC relative to the rest of the Atlantic coastline 
D)  The number of estuaries where OEC is moderately or severely degraded from pollution is almost twice that of those classified as low or moderately low. 
A)  The majority of ecosystems where OEC is moderately to highly eutrophic are primarily found along the Pacific Coast 
B)  The majority of ecosystems where OEC is moderately to highly eutrophic are primarily found along the Atlantic and Gulf coasts 
C)  The Florida Atlantic coast region has more ecosystems with high OEC relative to the rest of the Atlantic coastline 
D)  The number of estuaries where OEC is moderately or severely degraded from pollution is almost twice that of those classified as low or moderately low.

Question 13

In which ecosystem is phosphorous usually most limiting?

Accepted Answer

A)  Boreal forest 
B)  Tundra 
C)  Atlantic forest 
D)  Tropical forest 
A)  Boreal forest 
B)  Tundra 
C)  Atlantic forest 
D)  Tropical forest

Question 14

If you were given a measure of the total fixation of energy via photosynthesis,you would have which?

Accepted Answer

A)  Primary productivity 
B)  Rauto 
C)  Gross primary productivity 
D)  Secondary productivity 
A)  Primary productivity 
B)  Rauto 
C)  Gross primary productivity 
D)  Secondary productivity

Question 15

Which of the following choices explains what a standing crop of biomass is?

Accepted Answer

A)  A standing crop is the seed bank, the number of potential living plants within a unit area. 
B)  A standing crop of living organisms within a unit area. 
C)  A standing crop is the megafauna of a unit area. 
D)  A standing crop is the number of plants in an agricultural plot of land that ended up bearing a food resource product. 
A)  A standing crop is the seed bank, the number of potential living plants within a unit area. 
B)  A standing crop of living organisms within a unit area. 
C)  A standing crop is the megafauna of a unit area. 
D)  A standing crop is the number of plants in an agricultural plot of land that ended up bearing a food resource product.

Question 16

What does net primary productivity represent?

Accepted Answer

A)  The actual amount of new biomass available for heterotrophs to consume 
B)  The actual rate at which new biomass is produced for heterotrophs to consume 
C)  The actual number of new living organisms in a unit area for heterotrophs to consume 
D)  The actual productivity of an ecosystem and how much respiration occurs over time. 
A)  The actual amount of new biomass available for heterotrophs to consume 
B)  The actual rate at which new biomass is produced for heterotrophs to consume 
C)  The actual number of new living organisms in a unit area for heterotrophs to consume 
D)  The actual productivity of an ecosystem and how much respiration occurs over time.

Question 17

Consumption efficiency of an organism is 0.25,assimilation efficiency 0.25,production efficiency 0.45,and Rauto equaled 0.01.Which of these terms would you use to calculate the trophic transfer efficiency of this organism?

Accepted Answer

A)  Consumption efficiency 
B)  Rauto 
C)  Assimilation efficiency 
D)  Production efficiency 
A)  Consumption efficiency 
B)  Rauto 
C)  Assimilation efficiency 
D)  Production efficiency

Question 18

_____________ occurs when elements are converted from organic form back to an inorganic form.

Accepted Answer

A)  Immobilization 
B)  Mineralization 
C)  Decomposition 
D)  Salinization 
A)  Immobilization 
B)  Mineralization 
C)  Decomposition 
D)  Salinization

Question 19

,__________ occurs when an inorganic element is incorporated into an organic form.

Accepted Answer

A)  Immobilization 
B)  Desalinization 
C)  Desertification 
D)  Mineralization 
A)  Immobilization 
B)  Desalinization 
C)  Desertification 
D)  Mineralization

Question 20

According to Figure 11.15b,which of the following statements is correct?

Accepted Answer

A)  There are coastal marine ecosystems and estuaries along the North America Atlantic coastline and throughout the Gulf of Mexico where oxygen levels are too low to fully support animal life 
B)  Throughout Europe there are estuaries or coastal marine ecosystems that have been polluted by nutrients 
C)  There are no coastal marine ecosystems or estuaries along the Atlantic coastline of South America where oxygen levels are too low to fully support animal life 
D)  With the exception of Antarctica, every single continent has polluted estuaries or coastal marine ecosystems with nutrient pollution 
A)  There are coastal marine ecosystems and estuaries along the North America Atlantic coastline and throughout the Gulf of Mexico where oxygen levels are too low to fully support animal life 
B)  Throughout Europe there are estuaries or coastal marine ecosystems that have been polluted by nutrients 
C)  There are no coastal marine ecosystems or estuaries along the Atlantic coastline of South America where oxygen levels are too low to fully support animal life 
D)  With the exception of Antarctica, every single continent has polluted estuaries or coastal marine ecosystems with nutrient pollution

Where would photosynthetic efficiency be lowest?

If the cumulative mass of organisms in a biome was hypothetically held constant,but the area of the biome was reduced,how would biomass be affected?

Which of the following statements are correct regarding nitrogen fixation in subtropical ocean gyres?

In general,where would net primary productivity be regulated more by the availability of nutrients?

Which of the following is an accurate definition of primary productivity?

Which of the following choices refers to the rate of production of biomass by heterotrophs?

Which of the following choices refers to the rate of production of new biomass that would be available for consumption by bacteria,fungi,or animals?

Which of the following terms refers to the mass of organisms per unit area?

Which biome has the greatest overall NPP?

____________ occurs when bacteria convert ammonium to nitrate.

There are a range of mutualistic interactions between detritivores and bacteria,fungi,or protozoa.These include _______?

Using Figure 11.15a,which of the following are correct?

In which ecosystem is phosphorous usually most limiting?

If you were given a measure of the total fixation of energy via photosynthesis,you would have which?

Which of the following choices explains what a standing crop of biomass is?

What does net primary productivity represent?

Consumption efficiency of an organism is 0.25,assimilation efficiency 0.25,production efficiency 0.45,and Rauto equaled 0.01.Which of these terms would you use to calculate the trophic transfer efficiency of this organism?

_____________ occurs when elements are converted from organic form back to an inorganic form.

,__________ occurs when an inorganic element is incorporated into an organic form.

According to Figure 11.15b,which of the following statements is correct?

Ecology and How to Do It

Ecology’s Evolutionary Backdrop

Physical Conditions and the Availability of Resources

Climate and the World’s Biomes

Birth, Death and Movement

Interspecific Competition

Predation, Grazing and Disease

Molecular and Evolutionary Ecology

From Populations to Communities

Patterns in Species Richness

Global Biogeochemical Cycles and Their Alteration by Humans

Conservation Ecology

The Ecology of Human Population Growth, Disease, and Food Supply

Filters

Exam 11: The Flux of Energy and Matter Through Ecosystems

Where would photosynthetic efficiency be lowest?

If the cumulative mass of organisms in a biome was hypothetically held constant,but the area of the biome was reduced,how would biomass be affected?

Which of the following statements are correct regarding nitrogen fixation in subtropical ocean gyres?

In general,where would net primary productivity be regulated more by the availability of nutrients?

Which of the following is an accurate definition of primary productivity?

Which of the following choices refers to the rate of production of biomass by heterotrophs?

Which of the following choices refers to the rate of production of new biomass that would be available for consumption by bacteria,fungi,or animals?

Which of the following terms refers to the mass of organisms per unit area?

Which biome has the greatest overall NPP?

____________ occurs when bacteria convert ammonium to nitrate.

There are a range of mutualistic interactions between detritivores and bacteria,fungi,or protozoa.These include _______?

Using Figure 11.15a,which of the following are correct?

In which ecosystem is phosphorous usually most limiting?

If you were given a measure of the total fixation of energy via photosynthesis,you would have which?

Which of the following choices explains what a standing crop of biomass is?

What does net primary productivity represent?

Consumption efficiency of an organism is 0.25,assimilation efficiency 0.25,production efficiency 0.45,and Rauto equaled 0.01.Which of these terms would you use to calculate the trophic transfer efficiency of this organism?

_____________ occurs when elements are converted from organic form back to an inorganic form.

,__________ occurs when an inorganic element is incorporated into an organic form.

According to Figure 11.15b,which of the following statements is correct?

Ecology and How to Do It

Ecology’s Evolutionary Backdrop

Physical Conditions and the Availability of Resources

Climate and the World’s Biomes

Birth, Death and Movement

Interspecific Competition

Predation, Grazing and Disease

Molecular and Evolutionary Ecology

From Populations to Communities

Patterns in Species Richness

Global Biogeochemical Cycles and Their Alteration by Humans

Conservation Ecology

The Ecology of Human Population Growth, Disease, and Food Supply

Filters