Question 1

What is landscape ecology?

Accepted Answer

A) the study of human-designed communities. 
B) the study of the influences of pollution on natural ecosystems. 
C) a science exclusively concerned with terrestrial ecosystems. 
D) the study of the connections among various ecosystems. 
A) the study of human-designed communities. 
B) the study of the influences of pollution on natural ecosystems. 
C) a science exclusively concerned with terrestrial ecosystems. 
D) the study of the connections among various ecosystems.

Question 2

Which of the following is not a source of carbon for the carbon cycle?

Accepted Answer

A) shells of marine organisms 
B) oil 
C) detritus 
D) fertilizer 
A) shells of marine organisms 
B) oil 
C) detritus 
D) fertilizer

Question 3

Which of the following characterizes a symbiotic relationship?

Accepted Answer

A) a coevolved relationship where both species benefit 
B) a coevolved relationship where one species benefits and the other is not affected 
C) a coevolved relationship where one species benefits and the other is adversely affected 
D) all of these choices 
A) a coevolved relationship where both species benefit 
B) a coevolved relationship where one species benefits and the other is not affected 
C) a coevolved relationship where one species benefits and the other is adversely affected 
D) all of these choices

Question 4

Which of the following does the photograph BEST illustrate?

Accepted Answer

A) community 
B) biosphere 
C) landscape 
D) population 
A) community 
B) biosphere 
C) landscape 
D) population

Question 5

How would an ecologist classify the organism shown below?

Accepted Answer

A) decomposer 
B) primary consumer 
C) producer 
D) secondary consumer 
A) decomposer 
B) primary consumer 
C) producer 
D) secondary consumer

Question 6

Which of the following statements about energy is TRUE?

Accepted Answer

A) It flows in only one direction through an ecosystem. 
B) It can be used over and over again. 
C) Energy recycles continuously through an ecosystem. 
D) It tends to be concentrated by living organisms. 
A) It flows in only one direction through an ecosystem. 
B) It can be used over and over again. 
C) Energy recycles continuously through an ecosystem. 
D) It tends to be concentrated by living organisms.

Question 7

Define keystone species and discuss an example of an organism that is a keystone species.

Accepted Answer

A keystone species is vital in determini

Question 8

What is nitrogen fixation?

Accepted Answer

A) the conversion of gaseous nitrogen into an organism friendly form (ammonia (NH3). 
B) preplanned setting of atmospheric levels of nitrogen at 78% 
C) stabilizing elemental nitrogen into a gaseous two-atom molecule (N2) 
D) the reduction of nitrate (NO3-)to gaseous nitrogen. 
A) the conversion of gaseous nitrogen into an organism friendly form (ammonia (NH3). 
B) preplanned setting of atmospheric levels of nitrogen at 78% 
C) stabilizing elemental nitrogen into a gaseous two-atom molecule (N2) 
D) the reduction of nitrate (NO3-)to gaseous nitrogen.

Question 9

How can humans interfere with the phosphorus cycle?

Accepted Answer

A) by burning natural gas. 
B) by mining for fertilizers. 
C) emissions from automobile exhaust. 
D) increasing global warming. 
A) by burning natural gas. 
B) by mining for fertilizers. 
C) emissions from automobile exhaust. 
D) increasing global warming.

Question 10

The red patch on each of the trees shows where each type of warbler normally eats. This is an example of:

Accepted Answer

A) commensalism 
B) competitive exclusion 
C) geographic isolation 
D) resource partitioning 
A) commensalism 
B) competitive exclusion 
C) geographic isolation 
D) resource partitioning

Question 11

Which of the following describes intraspecific competition?

Accepted Answer

A) one organism, the predator, attempts to consume another, the prey. 
B) two species in different habitats have similar niches. 
C) two or more individuals of the same species attempt to use an essential common resource. 
D) two or more species have an ecological relationship. 
A) one organism, the predator, attempts to consume another, the prey. 
B) two species in different habitats have similar niches. 
C) two or more individuals of the same species attempt to use an essential common resource. 
D) two or more species have an ecological relationship.

Question 12

What is an organism's role, or lifestyle, within the structure of an ecosystem called?

Accepted Answer

A) habitat. 
B) trophic level. 
C) symbiotic relationship. 
D) ecological niche. 
A) habitat. 
B) trophic level. 
C) symbiotic relationship. 
D) ecological niche.

Question 13

What is an organism's realized niche?

Accepted Answer

A) all the places an organism can survive 
B) lifestyle an organism pursues and the resources it actually uses 
C) the ecosystem where an animal lives and all the foods available to it 
D) idealized ecological niche of an organism 
A) all the places an organism can survive 
B) lifestyle an organism pursues and the resources it actually uses 
C) the ecosystem where an animal lives and all the foods available to it 
D) idealized ecological niche of an organism

Question 14

Which of the following is an adaptation of flowers resulting from the coevolution of plants and pollinators?

Accepted Answer

A) mycorrhizae 
B) nectar 
C) epiphytes 
D) nitrogen fixing bacteria 
A) mycorrhizae 
B) nectar 
C) epiphytes 
D) nitrogen fixing bacteria

Question 15

According to the laws of thermodynamics which of the following can be recycled?

Accepted Answer

A) both matter and energy. 
B) matter, but not energy. 
C) neither matter nor energy. 
D) energy, but not matter. 
A) both matter and energy. 
B) matter, but not energy. 
C) neither matter nor energy. 
D) energy, but not matter.

Question 16

What is a species?

Accepted Answer

A) Organisms that live together. 
B) Organisms that live in the same area at the same time. 
C) A group of similar organisms whose members freely interbreed with one another and produce fertile offspring. 
D) All of the organisms that live together in an area including the physical environment that they live in. 
A) Organisms that live together. 
B) Organisms that live in the same area at the same time. 
C) A group of similar organisms whose members freely interbreed with one another and produce fertile offspring. 
D) All of the organisms that live together in an area including the physical environment that they live in.

Question 17

Which of the following is an abiotic factor of the environment?

Accepted Answer

A) living spaces 
B) disease organisms 
C) fungus 
D) producers 
A) living spaces 
B) disease organisms 
C) fungus 
D) producers

Question 18

Explain the meaning and importance of "nitrogen fixation." Give a specific example of an organism capable of this process and discuss the relationship this organism has with plants.

Accepted Answer

Nitrogen is critical for all organisms b

Question 19

A secondary consumer would eat:

Accepted Answer

A) tertiary consumers 
B) fungi 
C) grass 
D) herbivores 
A) tertiary consumers 
B) fungi 
C) grass 
D) herbivores

Question 20

All of the following traits are characteristic of the adaptations of prey EXCEPT:

Accepted Answer

A) producing toxins 
B) having the appearance of twigs or leaves. 
C) warning coloration. 
D) All of the above are characteristic prey adaptations. 
A) producing toxins 
B) having the appearance of twigs or leaves. 
C) warning coloration. 
D) All of the above are characteristic prey adaptations.

What is landscape ecology?

Which of the following is not a source of carbon for the carbon cycle?

Which of the following characterizes a symbiotic relationship?

Which of the following does the photograph BEST illustrate?

How would an ecologist classify the organism shown below?

Which of the following statements about energy is TRUE?

Define keystone species and discuss an example of an organism that is a keystone species.

What is nitrogen fixation?

How can humans interfere with the phosphorus cycle?

The red patch on each of the trees shows where each type of warbler normally eats. This is an example of:

Which of the following describes intraspecific competition?

What is an organism's role, or lifestyle, within the structure of an ecosystem called?

What is an organism's realized niche?

Which of the following is an adaptation of flowers resulting from the coevolution of plants and pollinators?

According to the laws of thermodynamics which of the following can be recycled?

What is a species?

Which of the following is an abiotic factor of the environment?

Explain the meaning and importance of "nitrogen fixation." Give a specific example of an organism capable of this process and discuss the relationship this organism has with plants.

A secondary consumer would eat:

All of the following traits are characteristic of the adaptations of prey EXCEPT:

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Exam 5: How Ecosystems Work

What is landscape ecology?

Which of the following is not a source of carbon for the carbon cycle?

Which of the following characterizes a symbiotic relationship?

Which of the following does the photograph BEST illustrate?

How would an ecologist classify the organism shown below?

Which of the following statements about energy is TRUE?

Define keystone species and discuss an example of an organism that is a keystone species.

What is nitrogen fixation?

How can humans interfere with the phosphorus cycle?

The red patch on each of the trees shows where each type of warbler normally eats. This is an example of:

Which of the following describes intraspecific competition?

What is an organism's role, or lifestyle, within the structure of an ecosystem called?

What is an organism's realized niche?

Which of the following is an adaptation of flowers resulting from the coevolution of plants and pollinators?

According to the laws of thermodynamics which of the following can be recycled?

What is a species?

Which of the following is an abiotic factor of the environment?

Explain the meaning and importance of "nitrogen fixation." Give a specific example of an organism capable of this process and discuss the relationship this organism has with plants.

A secondary consumer would eat:

All of the following traits are characteristic of the adaptations of prey EXCEPT:

The Environmental Challenges We Face

Sustainability and Human Values

Environmental History, Politics, and Economics

Risk Analysis and Environmental Health Hazards

Ecosystems and Evolution

Human Population Change and the Environment

Air and Air Pollution

Global Atmospheric Changes

Freshwater Resources and Water Pollution

The Ocean and Fisheries

Mineral and Soil Resources

Land Resources

Agriculture and Food Resources

Biodiversity and Conservation

Solid and Hazardous Waste

Nonrenewable Energy Resources

Renewable Energy Resources

Filters