Question 1

Which of the following factors is NOT used for quantifying primary productivity over time?

Accepted Answer

A)  the change in consumer biomass 
B)  the change in producer biomass 
C)  the movement of carbon dioxide 
D)  the movement of oxygen 
A)  the change in consumer biomass 
B)  the change in producer biomass 
C)  the movement of carbon dioxide 
D)  the movement of oxygen

Question 2

What proportion of solar radiation captured by photosynthesis is used for plant growth and reproduction?

Accepted Answer

A)  60 percent 
B)  80 percent 
C)  50 percent 
D)  40 percent 
A)  60 percent 
B)  80 percent 
C)  50 percent 
D)  40 percent

Question 3

Experiments on how soil fertility limits terrestrial NPP demonstrate that _____ constrain(s) NPP.

Accepted Answer

A)  nitrogen 
B)  phosphorus 
C)  nitrogen and phosphorus 
D)  micronutrients 
A)  nitrogen 
B)  phosphorus 
C)  nitrogen and phosphorus 
D)  micronutrients

Question 4

What accounts for the pyramid shape of the diagram that represents energy in trophic groups in an ecosystem?

Accepted Answer

A)  Energy produced by consumers is greater than energy stored by producers. 
B)  Energy stored by consumers is greater than energy stored by producers. 
C)  Energy is gained as it moves from one trophic level to the next. 
D)  Energy is lost as it moves from one trophic level to the next. 
A)  Energy produced by consumers is greater than energy stored by producers. 
B)  Energy stored by consumers is greater than energy stored by producers. 
C)  Energy is gained as it moves from one trophic level to the next. 
D)  Energy is lost as it moves from one trophic level to the next.

Question 5

Measuring the change in biomass from the beginning to the end of the growing season gives an estimate of

Accepted Answer

A)  herbivory. 
B)  standing crop. 
C)  gross primary productivity. 
D)  net primary productivity. 
A)  herbivory. 
B)  standing crop. 
C)  gross primary productivity. 
D)  net primary productivity.

Question 6

The decline of red-backed salamanders in some regions of eastern North America appears to be related to

Accepted Answer

A)  an increase in non-native earthworms. 
B)  an increase in predatory songbirds like the ovenbird. 
C)  a decrease in forest productivity. 
D)  an increase in forest nutrient cycling by bacteria and fungi. 
A)  an increase in non-native earthworms. 
B)  an increase in predatory songbirds like the ovenbird. 
C)  a decrease in forest productivity. 
D)  an increase in forest nutrient cycling by bacteria and fungi.

Question 7

In which ecosystem does leaf litter have the shortest residence time?

Accepted Answer

A)  humid tropical forest 
B)  temperate forest 
C)  dry tropical forest 
D)  boreal forest 
A)  humid tropical forest 
B)  temperate forest 
C)  dry tropical forest 
D)  boreal forest

Question 8

In fertilization experiments in a lake in Ontario, which of the following nutrients were shown to have the greatest limitation on productivity?

Accepted Answer

A)  nitrogen 
B)  carbon 
C)  phosphorus 
D)  All three nutrients equally limited productivity. 
A)  nitrogen 
B)  carbon 
C)  phosphorus 
D)  All three nutrients equally limited productivity.

Which of the following factors is NOT used for quantifying primary productivity over time?

What proportion of solar radiation captured by photosynthesis is used for plant growth and reproduction?

Experiments on how soil fertility limits terrestrial NPP demonstrate that _____ constrain(s) NPP.

What accounts for the pyramid shape of the diagram that represents energy in trophic groups in an ecosystem?

Measuring the change in biomass from the beginning to the end of the growing season gives an estimate of

The decline of red-backed salamanders in some regions of eastern North America appears to be related to

In which ecosystem does leaf litter have the shortest residence time?

In fertilization experiments in a lake in Ontario, which of the following nutrients were shown to have the greatest limitation on productivity?

Introduction: Ecology, Evolution, and the Scientific Method

Adaptations to Aquatic Environments

Adaptations to Terrestrial Environments

Adaptations to Variable Environments

Climates and Soils

Terrestrial and Aquatic Biomes

Evolution and Adaptation

Life Histories

Reproductive Strategies

Social Behaviors

Population Distributions

Population Growth and Regulation

Population Dynamics Over Space and Time

Predation and Herbivory

Parasitism and Infectious Diseases

Competition

Mutualism

Community Structure

Community Succession

Movement of Elements in Ecosystems

Landscape Ecology and Global Biodiversity

Global Conservation of Biodiversity

Filters

Exam 20: Movement of Energy in Ecosystems

Which of the following factors is NOT used for quantifying primary productivity over time?

What proportion of solar radiation captured by photosynthesis is used for plant growth and reproduction?

Experiments on how soil fertility limits terrestrial NPP demonstrate that _____ constrain(s) NPP.

What accounts for the pyramid shape of the diagram that represents energy in trophic groups in an ecosystem?

Measuring the change in biomass from the beginning to the end of the growing season gives an estimate of

The decline of red-backed salamanders in some regions of eastern North America appears to be related to

In which ecosystem does leaf litter have the shortest residence time?

In fertilization experiments in a lake in Ontario, which of the following nutrients were shown to have the greatest limitation on productivity?

Introduction: Ecology, Evolution, and the Scientific Method

Adaptations to Aquatic Environments

Adaptations to Terrestrial Environments

Adaptations to Variable Environments

Climates and Soils

Terrestrial and Aquatic Biomes

Evolution and Adaptation

Life Histories

Reproductive Strategies

Social Behaviors

Population Distributions

Population Growth and Regulation

Population Dynamics Over Space and Time

Predation and Herbivory

Parasitism and Infectious Diseases

Competition

Mutualism

Community Structure

Community Succession

Movement of Elements in Ecosystems

Landscape Ecology and Global Biodiversity

Global Conservation of Biodiversity

Filters

Exam 20: Movement of Energy in Ecosystems　