Question 1

The first plants in a successional sequence are called the ______________.

Accepted Answer

The answer of The first plants in a successional sequence...

Question 2

In the area of Glacier Bay,Alaska,the climax community is

Accepted Answer

A)  hemlock forest. 
B)  muskeg. 
C)  hemlock forest on steep slopes, and muskeg on shallower slopes. 
D)  hemlock forest on shallow slopes, and muskeg on steeper slopes. 
E)  Dryas mats with scattered alders and cottonwoods. 
A)  hemlock forest. 
B)  muskeg. 
C)  hemlock forest on steep slopes, and muskeg on shallower slopes. 
D)  hemlock forest on shallow slopes, and muskeg on steeper slopes. 
E)  Dryas mats with scattered alders and cottonwoods.

Question 3

As Hawaiian lava flows age over 4 million years,

Accepted Answer

A)  total soil phosphorous levels decrease. 
B)  total soil phosphorous levels increase. 
C)  total soil phosphorous stays about the same, but more phosphorous becomes refractory. 
D)  total soil phosphorous stays about the same, but more phosphorous becomes weatherable. 
E)  phosphorous limitation of primary production becomes less important. 
A)  total soil phosphorous levels decrease. 
B)  total soil phosphorous levels increase. 
C)  total soil phosphorous stays about the same, but more phosphorous becomes refractory. 
D)  total soil phosphorous stays about the same, but more phosphorous becomes weatherable. 
E)  phosphorous limitation of primary production becomes less important.

Question 4

Given the following data,determine the interquartile range:

Accepted Answer

A)  2 to 126 
B)  5 to 79 
C)  45 to 67 
D)  18 to 71 
E)  56$\pm$40 
A)  2 to 126 
B)  5 to 79 
C)  45 to 67 
D)  18 to 71 
E)  56$\pm$40

Question 5

"Primary" succession is succession that

Accepted Answer

A)  involves establishment of primary producers where there were none. 
B)  leads to establishment of a climax community dominated by primary producers. 
C)  occurs on newly exposed geologic substrates, not organic soil. 
D)  occurs where organic soils have been exposed but not destroyed by disturbance. 
E)  occurs after fire or agricultural abandonment. 
A)  involves establishment of primary producers where there were none. 
B)  leads to establishment of a climax community dominated by primary producers. 
C)  occurs on newly exposed geologic substrates, not organic soil. 
D)  occurs where organic soils have been exposed but not destroyed by disturbance. 
E)  occurs after fire or agricultural abandonment.

Question 6

According to the "facilitation" hypothesis,pioneer species modify the environment in ways that

Accepted Answer

A)  make it more suitable for their own survival, and less suitable for other species. 
B)  make it less suitable for their own survival, but more suitable for survival of other pioneer species. 
C)  make it less suitable for their own survival, but more suitable for survival of late-successional species. 
D)  make it less suitable for survival of all species. 
E)  make it more suitable for survival of all species. 
A)  make it more suitable for their own survival, and less suitable for other species. 
B)  make it less suitable for their own survival, but more suitable for survival of other pioneer species. 
C)  make it less suitable for their own survival, but more suitable for survival of late-successional species. 
D)  make it less suitable for survival of all species. 
E)  make it more suitable for survival of all species.

Question 7

In secondary succession on abandoned fields in the Piedmont of North Carolina,important pioneer species include

Accepted Answer

A)  horsetails. 
B)  Dryas. 
C)  broomsedge (Andropogon). 
D)  pine seedlings. 
E)  crabgrass and horseweed. 
A)  horsetails. 
B)  Dryas. 
C)  broomsedge (Andropogon). 
D)  pine seedlings. 
E)  crabgrass and horseweed.

Question 8

___________ occurs in areas where disturbance destroyed the previous community without destroying the soil.

Accepted Answer

A)  Pioneer succession 
B)  Climax succession 
C)  Secondary succession 
D)  Primary succession 
E)  Disturbance succession 
A)  Pioneer succession 
B)  Climax succession 
C)  Secondary succession 
D)  Primary succession 
E)  Disturbance succession

Question 9

Succession in old fields in the Piedmont of North Carolina involves succession driven

Accepted Answer

A)  largely by facilitation. 
B)  largely by inhibition. 
C)  largely by tolerance. 
D)  both by inhibition and by tolerance. 
E)  both by facilitation and by inhibition. 
A)  largely by facilitation. 
B)  largely by inhibition. 
C)  largely by tolerance. 
D)  both by inhibition and by tolerance. 
E)  both by facilitation and by inhibition.

Question 10

During succession in Arizona streams,nitrogen retention

Accepted Answer

A)  increases at first, but then declines late in succession. 
B)  increases steadily through succession. 
C)  increases slowly at first, but then rapidly late in succession. 
D)  increases rapidly at first, then plateaus late in succession. 
E)  first decreases, but later increases. 
A)  increases at first, but then declines late in succession. 
B)  increases steadily through succession. 
C)  increases slowly at first, but then rapidly late in succession. 
D)  increases rapidly at first, then plateaus late in succession. 
E)  first decreases, but later increases.

The first plants in a successional sequence are called the ______________.

In the area of Glacier Bay,Alaska,the climax community is

As Hawaiian lava flows age over 4 million years,

Given the following data,determine the interquartile range:

"Primary" succession is succession that

According to the "facilitation" hypothesis,pioneer species modify the environment in ways that

In secondary succession on abandoned fields in the Piedmont of North Carolina,important pioneer species include

___________ occurs in areas where disturbance destroyed the previous community without destroying the soil.

Succession in old fields in the Piedmont of North Carolina involves succession driven

During succession in Arizona streams,nitrogen retention

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

Socail 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

Primary Production and Energy Flow

Nutrient Cycling and Retention

Landscape Ecology

Geographic Ecology

Global Ecology

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Exam 20: Succession and Stability

The first plants in a successional sequence are called the ______________.

In the area of Glacier Bay,Alaska,the climax community is

As Hawaiian lava flows age over 4 million years,

Given the following data,determine the interquartile range:

"Primary" succession is succession that

According to the "facilitation" hypothesis,pioneer species modify the environment in ways that

In secondary succession on abandoned fields in the Piedmont of North Carolina,important pioneer species include

___________ occurs in areas where disturbance destroyed the previous community without destroying the soil.

Succession in old fields in the Piedmont of North Carolina involves succession driven

During succession in Arizona streams,nitrogen retention

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

Socail 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

Primary Production and Energy Flow

Nutrient Cycling and Retention

Landscape Ecology

Geographic Ecology

Global Ecology

Filters