Question 1

A relationship between two species in which both species benefit is known as

Accepted Answer

A)  parasitism. 
B)  mutualism 
C)  competition. 
D)  predation. 
E)  commensalism. 
A)  parasitism. 
B)  mutualism 
C)  competition. 
D)  predation. 
E)  commensalism.

Question 2

Most organisms are dependent upon plants because

Accepted Answer

A)  plants produce oxygen as a by-product of photosynthesis. 
B)  as producers, they form the base of food chains. 
C)  they function to prevent erosion and reduce desertification. 
D)  as they remove carbon dioxide from the atmosphere, they reduce the problems generated by the greenhouse effect. 
E)  all of these apply. 
A)  plants produce oxygen as a by-product of photosynthesis. 
B)  as producers, they form the base of food chains. 
C)  they function to prevent erosion and reduce desertification. 
D)  as they remove carbon dioxide from the atmosphere, they reduce the problems generated by the greenhouse effect. 
E)  all of these apply.

Question 3

Which of the following represents an early stage in primary succession?

Accepted Answer

A)  pine trees 
B)  mosses and lichen of bare rock 
C)  weedy annual plants in an open field 
D)  climax species in succession 
E)  fields of food crops 
A)  pine trees 
B)  mosses and lichen of bare rock 
C)  weedy annual plants in an open field 
D)  climax species in succession 
E)  fields of food crops

Question 4

In a ecosystem, what does a producer produce that flows through the ecosystem?

Accepted Answer

A)  carbohydrates 
B)  minerals 
C)  water 
D)  carbohydrates and minerals 
E)  minerals and water 
A)  carbohydrates 
B)  minerals 
C)  water 
D)  carbohydrates and minerals 
E)  minerals and water

Question 5

Which of the following is NOT a recycled element of an ecosystem?

Accepted Answer

A)  water 
B)  phosphorous 
C)  oxygen 
D)  energy 
E)  more than one of these 
A)  water 
B)  phosphorous 
C)  oxygen 
D)  energy 
E)  more than one of these

Question 6

Which of the following structures would be most attractive to a fire ant?

Accepted Answer

A)  an electric can opener 
B)  a canvas patio umbrella 
C)  aluminum foil 
D)  a ceramic flower pot 
E)  a leather sofa 
A)  an electric can opener 
B)  a canvas patio umbrella 
C)  aluminum foil 
D)  a ceramic flower pot 
E)  a leather sofa

A relationship between two species in which both species benefit is known as

Most organisms are dependent upon plants because

Which of the following represents an early stage in primary succession?

In a ecosystem, what does a producer produce that flows through the ecosystem?

Which of the following is NOT a recycled element of an ecosystem?

Which of the following structures would be most attractive to a fire ant?

Invitation to Biology

Molecules of Life

Cell Structure

Energy and Metabolism

Capturing and Releasing Energy

Dna Structure and Function

Gene Expression and Control

How Cells Reproduce

Patterns of Inheritance

Biotechnology

Evidence of Evolution

Processes of Evolution

Early Life Forms and the Viruses

Plants and Fungi

Animal Evolution

Population Ecology

The Biosphere and Human Effects

Animal Tissues and Organs

How Animals Move

Circulation and Respiration

Immunity

Digestion and Excretion

Neural Control and the Senses

Endocrine Control

Reproduction and Development

Plant Form and Function

Plant Reproduction and Development

Filters

Exam 17: Communities and Ecosystems

A relationship between two species in which both species benefit is known as

Most organisms are dependent upon plants because

Which of the following represents an early stage in primary succession?

In a ecosystem, what does a producer produce that flows through the ecosystem?

Which of the following is NOT a recycled element of an ecosystem?

Which of the following structures would be most attractive to a fire ant?

Invitation to Biology

Molecules of Life

Cell Structure

Energy and Metabolism

Capturing and Releasing Energy

Dna Structure and Function

Gene Expression and Control

How Cells Reproduce

Patterns of Inheritance

Biotechnology

Evidence of Evolution

Processes of Evolution

Early Life Forms and the Viruses

Plants and Fungi

Animal Evolution

Population Ecology

The Biosphere and Human Effects

Animal Tissues and Organs

How Animals Move

Circulation and Respiration

Immunity

Digestion and Excretion

Neural Control and the Senses

Endocrine Control

Reproduction and Development

Plant Form and Function

Plant Reproduction and Development

Filters