Question 1

Which of the following statements about nutrient cycling is FALSE?

Accepted Answer

A) An ecosystem has the property of regulating the cycling of nutrients. 
B) An ecosystem is self-sustaining in terms of its nutrient supply. 
C) Nutrients are continuously cycled between organisms and the environment. 
D) In an ideal nutrient cycle, small amounts of nutrients are lost. 
E) In a nutrient cycle, the rate of flow differs among nutrients and habitats. 
A) An ecosystem has the property of regulating the cycling of nutrients. 
B) An ecosystem is self-sustaining in terms of its nutrient supply. 
C) Nutrients are continuously cycled between organisms and the environment. 
D) In an ideal nutrient cycle, small amounts of nutrients are lost. 
E) In a nutrient cycle, the rate of flow differs among nutrients and habitats.

Question 2

Herbivores usually occupy the base of a pyramid of energy.

Accepted Answer

A) True 
 B)False

Question 3

The existence of more grass plants than herbivores in a grassland ecosystem is illustrated by a(n):

Accepted Answer

A) pyramid of energy. 
B) pyramid of biomass. 
C) pyramid of numbers. 
D) pyramid of body size. 
E) inverted pyramid of biomass. 
A) pyramid of energy. 
B) pyramid of biomass. 
C) pyramid of numbers. 
D) pyramid of body size. 
E) inverted pyramid of biomass.

Question 4

A(n)______ includes, by definition, all the organisms in a particular place together with their environment.

Accepted Answer

A) community 
B) ecosystem 
C) population 
D) species 
E) biosphere 
A) community 
B) ecosystem 
C) population 
D) species 
E) biosphere

Question 5

In an ecosystem, energy flows from:

Accepted Answer

A) consumers to autotrophs to decomposers. 
B) decomposers to consumers to autotrophs. 
C) autotrophs to consumers to decomposers. 
D) consumers to decomposers to autotrophs. 
E) autotrophs to decomposers to consumers. 
A) consumers to autotrophs to decomposers. 
B) decomposers to consumers to autotrophs. 
C) autotrophs to consumers to decomposers. 
D) consumers to decomposers to autotrophs. 
E) autotrophs to decomposers to consumers.

Question 6

A community consists of all the ______ in a particular area.

Accepted Answer

A) individuals of a single species 
B) plants 
C) plants and animals 
D) organisms 
E) organisms and their environment 
A) individuals of a single species 
B) plants 
C) plants and animals 
D) organisms 
E) organisms and their environment

Which of the following statements about nutrient cycling is FALSE?

Herbivores usually occupy the base of a pyramid of energy.

The existence of more grass plants than herbivores in a grassland ecosystem is illustrated by a(n):

A(n)______ includes, by definition, all the organisms in a particular place together with their environment.

In an ecosystem, energy flows from:

A community consists of all the ______ in a particular area.

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

Which of the following statements about nutrient cycling is FALSE?

Herbivores usually occupy the base of a pyramid of energy.

The existence of more grass plants than herbivores in a grassland ecosystem is illustrated by a(n):

A(n)______ includes, by definition, all the organisms in a particular place together with their environment.

In an ecosystem, energy flows from:

A community consists of all the ______ in a particular area.

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