Question 1

Which community would you suspect receives high levels of radiation but does not convert much of that radiation to biomass?

Accepted Answer

A)  Tropical rain forest in Costa Rica 
B)  Tropical rain forest in Ecuador 
C)  Death Valley desert in California, United States of America 
D)  A conifer forest in Alberta, Canada 
A)  Tropical rain forest in Costa Rica 
B)  Tropical rain forest in Ecuador 
C)  Death Valley desert in California, United States of America 
D)  A conifer forest in Alberta, Canada

Question 2

If consumption efficiency of an organism was .25,assimilation efficiency .25 and production efficiency .45 what would the trophic transfer efficiency of this organism be??

Accepted Answer

A)  2.8% 
B)  0.028% 
C)  280% 
D)  28% 
A)  2.8% 
B)  0.028% 
C)  280% 
D)  28%

Question 3

______________ is a process whereby dead bodies,shed parts of bodies,or feces gradually disintegrate.

Accepted Answer

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

Question 4

Which of the following are variables that determine the relative importance of energy pathways?

Accepted Answer

A)  Consumption efficiencies 
B)  Production efficiencies 
C)  Stimulation efficiencies 
D)  Assimilation efficiencies 
A)  Consumption efficiencies 
B)  Production efficiencies 
C)  Stimulation efficiencies 
D)  Assimilation efficiencies

Question 5

In which ecosystem would nitrogen most likely be limiting?

Accepted Answer

A)  Desert 
B)  Boreal forest 
C)  Mediterranean 
D)  Mountains 
A)  Desert 
B)  Boreal forest 
C)  Mediterranean 
D)  Mountains

Question 6

You have been informed that terrestrial plants produce 45-60 petragrams of carbon per year,and that this figure accounts for respiratory heat lost from the environment by autotrophs.What then is this 45-60 petragrams of carbon per year a measure of?

Accepted Answer

A)  Biomass 
B)  Standing crop 
C)  Rauto 
D)  Net primary productivity 
A)  Biomass 
B)  Standing crop 
C)  Rauto 
D)  Net primary productivity

Question 7

The most substantial pathway of loss of elements in an ecosystem is through streamflow.A system such as a stream moves phosphorous and iron mostly attached to particles,while nitrogen is mostly dissolved.Thus,a stream carries the load of nutrients _______________.

Accepted Answer

A)  As mostly saturated 
B)  As both dissolved and particulate 
C)  At high concentrations at all times 
D)  At low concentrations at all times 
A)  As mostly saturated 
B)  As both dissolved and particulate 
C)  At high concentrations at all times 
D)  At low concentrations at all times

Question 8

Which continent has the highest rate of nitrogen fixation?

Accepted Answer

A)  North America 
B)  Europe 
C)  Australia 
D)  South America 
A)  North America 
B)  Europe 
C)  Australia 
D)  South America

Question 9

A nitrogen to phosphorous ratio by moles of 15:1 is often termed which of the following?

Accepted Answer

A)  The Redford ratio 
B)  Net primary productivity 
C)  Gross primary productivity 
D)  The Redfield ratio 
A)  The Redford ratio 
B)  Net primary productivity 
C)  Gross primary productivity 
D)  The Redfield ratio

Question 10

Which of the following could be ways of expressing biomass?

Accepted Answer

A)  Joules per square meter 
B)  Grams per square meter 
C)  Grams of carbon per square meter 
D)  None of the above 
A)  Joules per square meter 
B)  Grams per square meter 
C)  Grams of carbon per square meter 
D)  None of the above

Which community would you suspect receives high levels of radiation but does not convert much of that radiation to biomass?

If consumption efficiency of an organism was .25,assimilation efficiency .25 and production efficiency .45 what would the trophic transfer efficiency of this organism be??

______________ is a process whereby dead bodies,shed parts of bodies,or feces gradually disintegrate.

Which of the following are variables that determine the relative importance of energy pathways?

In which ecosystem would nitrogen most likely be limiting?

You have been informed that terrestrial plants produce 45-60 petragrams of carbon per year,and that this figure accounts for respiratory heat lost from the environment by autotrophs.What then is this 45-60 petragrams of carbon per year a measure of?

The most substantial pathway of loss of elements in an ecosystem is through streamflow.A system such as a stream moves phosphorous and iron mostly attached to particles,while nitrogen is mostly dissolved.Thus,a stream carries the load of nutrients _______________.

Which continent has the highest rate of nitrogen fixation?

A nitrogen to phosphorous ratio by moles of 15:1 is often termed which of the following?

Which of the following could be ways of expressing biomass?

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

Which community would you suspect receives high levels of radiation but does not convert much of that radiation to biomass?

If consumption efficiency of an organism was .25,assimilation efficiency .25 and production efficiency .45 what would the trophic transfer efficiency of this organism be??

______________ is a process whereby dead bodies,shed parts of bodies,or feces gradually disintegrate.

Which of the following are variables that determine the relative importance of energy pathways?

In which ecosystem would nitrogen most likely be limiting?

You have been informed that terrestrial plants produce 45-60 petragrams of carbon per year,and that this figure accounts for respiratory heat lost from the environment by autotrophs.What then is this 45-60 petragrams of carbon per year a measure of?

The most substantial pathway of loss of elements in an ecosystem is through streamflow.A system such as a stream moves phosphorous and iron mostly attached to particles,while nitrogen is mostly dissolved.Thus,a stream carries the load of nutrients _______________.

Which continent has the highest rate of nitrogen fixation?

A nitrogen to phosphorous ratio by moles of 15:1 is often termed which of the following?

Which of the following could be ways of expressing biomass?

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