Question 1

Which of the following is the correct relationship between gross primary production (GPP),net primary production (NPP),and respiration (RESP)?

Accepted Answer

A) GPP = NPP - RESP 
B) RESP = GPP + NPP 
C) NPP = GPP - RESP 
D) NPP = GPP + RESP 
E) None of the choices are correct. 
A) GPP = NPP - RESP 
B) RESP = GPP + NPP 
C) NPP = GPP - RESP 
D) NPP = GPP + RESP 
E) None of the choices are correct.

Question 2

Carnivores that feed on herbivores (or on detritivores)are referred to as

Accepted Answer

A) primary producers. 
B) primary consumers. 
C) secondary consumers. 
D) parasitoids. 
E) keystone species. 
A) primary producers. 
B) primary consumers. 
C) secondary consumers. 
D) parasitoids. 
E) keystone species.

Question 3

Experimental fertilizations in the Baltic Sea suggest that primary productivity there is normally limited by

Accepted Answer

A) phosphorus. 
B) nitrogen. 
C) iron. 
D) potassium. 
E) temperature. 
A) phosphorus. 
B) nitrogen. 
C) iron. 
D) potassium. 
E) temperature.

Question 4

The production of new organic matter,or biomass,by autotrophs in a system is called ____________.

Accepted Answer

A) primary production 
B) primary construction 
C) trophic production 
D) trophic gain 
E) autotrophic gain 
A) primary production 
B) primary construction 
C) trophic production 
D) trophic gain 
E) autotrophic gain

Question 5

On the Serengeti plain of eastern Africa,large grazing mammals consume what fraction of total primary production?

Accepted Answer

A) a negligibly small amount 
B) about 10% 
C) about 25% 
D) about 66% 
E) nearly all 
A) a negligibly small amount 
B) about 10% 
C) about 25% 
D) about 66% 
E) nearly all

Question 6

The major source of nutrients in surface waters of the open ocean is

Accepted Answer

A) mixing of subsurface with surface waters. 
B) deposition from the atmosphere. 
C) addition by ocean currents bringing nutrients from nearshore waters. 
D) decomposition of dead organic material. 
E) photosynthesis by planktonic algae. 
A) mixing of subsurface with surface waters. 
B) deposition from the atmosphere. 
C) addition by ocean currents bringing nutrients from nearshore waters. 
D) decomposition of dead organic material. 
E) photosynthesis by planktonic algae.

Question 7

In Stephen Carpenter and colleagues' manipulations of lake food webs,increased densities of adult largemouth bass led to

Accepted Answer

A) increased rates of grazing on phytoplankton by zooplankton. 
B) decreased rates of grazing on phytoplankton by zooplankton. 
C) increased population sizes of planktivorous fish. 
D) increased consumption of zooplankton by planktivorous fish. 
E) no noticeable effects on food web structure. 
A) increased rates of grazing on phytoplankton by zooplankton. 
B) decreased rates of grazing on phytoplankton by zooplankton. 
C) increased population sizes of planktivorous fish. 
D) increased consumption of zooplankton by planktivorous fish. 
E) no noticeable effects on food web structure.

Question 8

Actual evapotranspiration rates are highest in ____________ climates.

Accepted Answer

A) warm,moist 
B) cold,moist 
C) warm,dry 
D) cold,dry 
E) actual evapotranspiration rate is not affected by climate 
A) warm,moist 
B) cold,moist 
C) warm,dry 
D) cold,dry 
E) actual evapotranspiration rate is not affected by climate

Question 9

An increase about 1,000 years ago in 13C content of human collagen from archeological sites in eastern North America probably records

Accepted Answer

A) replacement of vegetables and grains in the diet by meat. 
B) replacement of corn by beans and squash in the diet. 
C) increasing consumption of corn. 
D) increasing levels of 13C in soils. 
E) increasing levels of 13C in the atmosphere. 
A) replacement of vegetables and grains in the diet by meat. 
B) replacement of corn by beans and squash in the diet. 
C) increasing consumption of corn. 
D) increasing levels of 13C in soils. 
E) increasing levels of 13C in the atmosphere.

Question 10

Primary production is lowest in which ecosystem?

Accepted Answer

A) creosote bush desert 
B) annual grassland 
C) subalpine forest 
D) temperate deciduous forest 
E) tropical forest 
A) creosote bush desert 
B) annual grassland 
C) subalpine forest 
D) temperate deciduous forest 
E) tropical forest

Which of the following is the correct relationship between gross primary production (GPP),net primary production (NPP),and respiration (RESP)?

Carnivores that feed on herbivores (or on detritivores)are referred to as

Experimental fertilizations in the Baltic Sea suggest that primary productivity there is normally limited by

The production of new organic matter,or biomass,by autotrophs in a system is called ____________.

On the Serengeti plain of eastern Africa,large grazing mammals consume what fraction of total primary production?

The major source of nutrients in surface waters of the open ocean is

In Stephen Carpenter and colleagues' manipulations of lake food webs,increased densities of adult largemouth bass led to

Actual evapotranspiration rates are highest in ____________ climates.

An increase about 1,000 years ago in ¹³C content of human collagen from archeological sites in eastern North America probably records

Primary production is lowest in which ecosystem?

Introduction to Ecology: Historical Foundations and Developing Frontiers

Life on Land

Life in Water

Population Genetics and Natural Selection

Temperature Relations

Water Relations

Energy and Nutrient Relations

Social Relations

Population Distribution and Abundance

Population Dynamics

Population Growth

Life Histories

Competition

Exploitative Interactions: Predation, herbivory, parasitism, and Disease

Mutualism

Species Abundance and Diversity

Species Interactions and Community Structure

Nutrient Cycling and Retention

Succession and Stability

Landscape Ecology

Geographic Ecology

Global Ecology

Filters

Exam 18: Primary Production and Energy Flow

Which of the following is the correct relationship between gross primary production (GPP),net primary production (NPP),and respiration (RESP)?

Carnivores that feed on herbivores (or on detritivores)are referred to as

Experimental fertilizations in the Baltic Sea suggest that primary productivity there is normally limited by

The production of new organic matter,or biomass,by autotrophs in a system is called ____________.

On the Serengeti plain of eastern Africa,large grazing mammals consume what fraction of total primary production?

The major source of nutrients in surface waters of the open ocean is

In Stephen Carpenter and colleagues' manipulations of lake food webs,increased densities of adult largemouth bass led to

Actual evapotranspiration rates are highest in ____________ climates.

An increase about 1,000 years ago in 13C content of human collagen from archeological sites in eastern North America probably records

Primary production is lowest in which ecosystem?

Introduction to Ecology: Historical Foundations and Developing Frontiers

Life on Land

Life in Water

Population Genetics and Natural Selection

Temperature Relations

Water Relations

Energy and Nutrient Relations

Social Relations

Population Distribution and Abundance

Population Dynamics

Population Growth

Life Histories

Competition

Exploitative Interactions: Predation, herbivory, parasitism, and Disease

Mutualism

Species Abundance and Diversity

Species Interactions and Community Structure

Nutrient Cycling and Retention

Succession and Stability

Landscape Ecology

Geographic Ecology

Global Ecology

Filters

An increase about 1,000 years ago in ¹³C content of human collagen from archeological sites in eastern North America probably records