Question 1

In the undisturbed Hubbard Brook forest, scientists detected:

Accepted Answer

A)  considerable loss of nutrients by leaching. 
B)  considerable addition of nutrients from dissolving bedrock. 
C)  considerable inefficiency in conserving minerals. 
D)  a slight annual gain of nitrogen and potassium. 
E)  a slight annual gain of calcium. 
A)  considerable loss of nutrients by leaching. 
B)  considerable addition of nutrients from dissolving bedrock. 
C)  considerable inefficiency in conserving minerals. 
D)  a slight annual gain of nitrogen and potassium. 
E)  a slight annual gain of calcium.

Question 2

Which of the following statements about mycorrhizal associations is FALSE?

Accepted Answer

A)  Mycorrhizal fungi grow in or on roots. 
B)  Mycorrhizal fungi can be species that simply grow near roots. 
C)  They are found in most vascular plants. 
D)  They are mutualistic associations. 
E)  They can be highly specific. 
A)  Mycorrhizal fungi grow in or on roots. 
B)  Mycorrhizal fungi can be species that simply grow near roots. 
C)  They are found in most vascular plants. 
D)  They are mutualistic associations. 
E)  They can be highly specific.

Question 3

After the cactus moth was introduced in Australia, what was the effect on the prickly-pear cactus?

Accepted Answer

A)  The cacti were able to flower. 
B)  The cacti produced toxic chemicals. 
C)  The cactus population was vastly reduced. 
D)  The cactus population was completely wiped out. 
E)  The cacti were more widely available to grazing animals. 
A)  The cacti were able to flower. 
B)  The cacti produced toxic chemicals. 
C)  The cactus population was vastly reduced. 
D)  The cactus population was completely wiped out. 
E)  The cacti were more widely available to grazing animals.

Question 4

Which of the following is not a primary producer?

Accepted Answer

A)  a cyanobacterium 
B)  a diatom 
C)  a lichen 
D)  a chemosynthesizer 
E)  a caterpillar 
A)  a cyanobacterium 
B)  a diatom 
C)  a lichen 
D)  a chemosynthesizer 
E)  a caterpillar

Question 5

Competition results when individuals living in the same area require the same limiting resource.

Accepted Answer

A) True 
 B)False

In the undisturbed Hubbard Brook forest, scientists detected:

Which of the following statements about mycorrhizal associations is FALSE?

After the cactus moth was introduced in Australia, what was the effect on the prickly-pear cactus?

Which of the following is not a primary producer?

Competition results when individuals living in the same area require the same limiting resource.

Botany: an Introduction

The Molecular Composition of Plant Cells

The Plant Cell and the Cell Cycle

The Movement of Substances Into and Out of Cells

The Flow of Energy

Respiration

Photosynthesis, Light, and Life

Sexual Reproduction and Heredity

The Chemistry of Heredity and Gene Expression

Recombinant Dna Technology, Plant Biotechnology, and Genomics

The Process of Evolution

Systematics: the Science of Biological Diversity

Prokaryotes and Viruses

Fungi

Protists: Algae and Heterotrophic Protists

Bryophytes

Seedless Vascular Plants

Gymnosperms

Introduction to the Angiosperms

Evolution of the Angiosperms

Plants and People

Early Development of the Plant Body

Cells and Tissues of the Plant Body

The Root: Structure and Development

The Shoot: Primary Structure and Development

Secondary Growth in Stems

Regulating Growth and Development: the Plant Hormones

External Factors and Plant Growth

Plant Nutrition and Soils

The Movement of Water and Solutes in Plants

Global Ecology

Filters

Exam 31: The Dynamics of Communities and Ecosystems

In the undisturbed Hubbard Brook forest, scientists detected:

Which of the following statements about mycorrhizal associations is FALSE?

After the cactus moth was introduced in Australia, what was the effect on the prickly-pear cactus?

Which of the following is not a primary producer?

Competition results when individuals living in the same area require the same limiting resource.

Botany: an Introduction

The Molecular Composition of Plant Cells

The Plant Cell and the Cell Cycle

The Movement of Substances Into and Out of Cells

The Flow of Energy

Respiration

Photosynthesis, Light, and Life

Sexual Reproduction and Heredity

The Chemistry of Heredity and Gene Expression

Recombinant Dna Technology, Plant Biotechnology, and Genomics

The Process of Evolution

Systematics: the Science of Biological Diversity

Prokaryotes and Viruses

Fungi

Protists: Algae and Heterotrophic Protists

Bryophytes

Seedless Vascular Plants

Gymnosperms

Introduction to the Angiosperms

Evolution of the Angiosperms

Plants and People

Early Development of the Plant Body

Cells and Tissues of the Plant Body

The Root: Structure and Development

The Shoot: Primary Structure and Development

Secondary Growth in Stems

Regulating Growth and Development: the Plant Hormones

External Factors and Plant Growth

Plant Nutrition and Soils

The Movement of Water and Solutes in Plants

Global Ecology

Filters