Question 1

Low-moisture conditions favor allocation by a plant to

Accepted Answer

A) leaves. 
B) stems. 
C) roots. 
D) flowers. 
A) leaves. 
B) stems. 
C) roots. 
D) flowers.

Question 2

Plants assimilate energy through the process of

Accepted Answer

A) decomposition. 
B) respiration. 
C) photosynthesis. 
D) regeneration. 
A) decomposition. 
B) respiration. 
C) photosynthesis. 
D) regeneration.

Question 3

In the surface waters of oceans,the two most limiting nutrients for primary productivity are

Accepted Answer

A) sulfur and phosphorus. 
B) sulfur and nitrogen. 
C) nitrogen and iron. 
D) nitrogen and phosphorus. 
A) sulfur and phosphorus. 
B) sulfur and nitrogen. 
C) nitrogen and iron. 
D) nitrogen and phosphorus.

Question 4

Rates of herbivory are highest in

Accepted Answer

A) aquatic ecosystems dominated by phytoplankton. 
B) aquatic ecosystems dominated by vascular plants. 
C) terrestrial ecosystems dominated by herbaceous plants. 
D) terrestrial ecosystems dominated by woody plants. 
A) aquatic ecosystems dominated by phytoplankton. 
B) aquatic ecosystems dominated by vascular plants. 
C) terrestrial ecosystems dominated by herbaceous plants. 
D) terrestrial ecosystems dominated by woody plants.

Question 5

In most terrestrial and many aquatic ecosystems,the ________ food chain is the dominant pathway of energy flow.

Accepted Answer

A) detrital 
B) grazing 
C) consumer 
D) heterotroph 
A) detrital 
B) grazing 
C) consumer 
D) heterotroph

Question 6

Consumption efficiency is the ratio of ingestion to production.

Accepted Answer

A) True 
 B)False

Question 7

________ primary production is the total rate of photosynthesis or energy assimilated by plants.

Accepted Answer

The answer of ________ primary production is the total rate...

Question 8

An ecologist studying productivity in a sample of grasses measures gross primary productivity as 1000 kcal / m2 / yr and autotrophic respiration as 100 kcal / m2 / yr.Based on these calculations,the net primary productivity would be

Accepted Answer

A) 10 kcal / m2 / yr. 
B) 900 kcal / m2 / yr. 
C) 1100 kcal / m2 / yr. 
D) 10,000 kcal / m2 / yr. 
A) 10 kcal / m2 / yr. 
B) 900 kcal / m2 / yr. 
C) 1100 kcal / m2 / yr. 
D) 10,000 kcal / m2 / yr.

Low-moisture conditions favor allocation by a plant to

Plants assimilate energy through the process of

In the surface waters of oceans,the two most limiting nutrients for primary productivity are

Rates of herbivory are highest in

In most terrestrial and many aquatic ecosystems,the ________ food chain is the dominant pathway of energy flow.

Consumption efficiency is the ratio of ingestion to production.

________ primary production is the total rate of photosynthesis or energy assimilated by plants.

An ecologist studying productivity in a sample of grasses measures gross primary productivity as 1000 kcal / m2 / yr and autotrophic respiration as 100 kcal / m2 / yr.Based on these calculations,the net primary productivity would be

The Nature of Ecology

Climate

The Aquatic Environment

The Terrestrial Environment

Life History

Intraspecific Population Regulation

Metapopulations

Species Interactions,population Dynamics,and Natural Selection

Interspecific Competition

Predation

Parasitism and Mutualism

Community Structure

Factors Influencing the Structure of Communities

Community Dynamics

Landscape Dynamics

Decomposition and Nutrient Cycling

Biogeochemical Cycles

Terrestrial Ecosystems

Aquatic Ecosystems

Coastal and Wetland Ecosystems

Large-Scale Patterns of Biological Diversity

Population Growth, resource Use, and Sustainability

Habitat Loss, biodiversity, and Conservation

Global Climate Change

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Exam 21: Ecosystem Energetics

Low-moisture conditions favor allocation by a plant to

Plants assimilate energy through the process of

In the surface waters of oceans,the two most limiting nutrients for primary productivity are

Rates of herbivory are highest in

In most terrestrial and many aquatic ecosystems,the ________ food chain is the dominant pathway of energy flow.

Consumption efficiency is the ratio of ingestion to production.

________ primary production is the total rate of photosynthesis or energy assimilated by plants.

An ecologist studying productivity in a sample of grasses measures gross primary productivity as 1000 kcal / m2 / yr and autotrophic respiration as 100 kcal / m2 / yr.Based on these calculations,the net primary productivity would be

The Nature of Ecology

Climate

The Aquatic Environment

The Terrestrial Environment

Life History

Intraspecific Population Regulation

Metapopulations

Species Interactions,population Dynamics,and Natural Selection

Interspecific Competition

Predation

Parasitism and Mutualism

Community Structure

Factors Influencing the Structure of Communities

Community Dynamics

Landscape Dynamics

Decomposition and Nutrient Cycling

Biogeochemical Cycles

Terrestrial Ecosystems

Aquatic Ecosystems

Coastal and Wetland Ecosystems

Large-Scale Patterns of Biological Diversity

Population Growth, resource Use, and Sustainability

Habitat Loss, biodiversity, and Conservation

Global Climate Change

Filters