Question 1

What important role do decomposers play in the ecosystem?

Accepted Answer

A) predation 
B) pollination 
C) nutrient cycling 
D) photosynthesis 
A) predation 
B) pollination 
C) nutrient cycling 
D) photosynthesis

Question 2

What is predation?

Accepted Answer

A) Two or more individuals attempting to use an essential common resource. 
B) One organism consuming another organism,which may be a plant or animal. 
C) Organisms living together. 
D) A coevolved relationship where one organism benefits and the other is adversely affected. 
A) Two or more individuals attempting to use an essential common resource. 
B) One organism consuming another organism,which may be a plant or animal. 
C) Organisms living together. 
D) A coevolved relationship where one organism benefits and the other is adversely affected.

Question 3

How does the phosphorus cycle DIFFER from the carbon cycle?

Accepted Answer

A) There is little or no human impact on the phosphorus cycle. 
B) Phosphorus is not a critical component of living organisms. 
C) The hydrosphere plays a role in the phosphorus cycle. 
D) The atmosphere does not contribute to the phosphorus cycle. 
A) There is little or no human impact on the phosphorus cycle. 
B) Phosphorus is not a critical component of living organisms. 
C) The hydrosphere plays a role in the phosphorus cycle. 
D) The atmosphere does not contribute to the phosphorus cycle.

Question 4

What is coevolution?

Accepted Answer

A) The interdependent evolution of two interacting species. 
B) The interdependent evolution of similar organisms whose members freely interbreed in the wild. 
C) The evolution of a single species producing more offspring than will survive. 
D) Species that lack a nuclear membrane and other internal cell membranes. 
A) The interdependent evolution of two interacting species. 
B) The interdependent evolution of similar organisms whose members freely interbreed in the wild. 
C) The evolution of a single species producing more offspring than will survive. 
D) Species that lack a nuclear membrane and other internal cell membranes.

Question 5

In the carbon cycle,carbon can be found in:

Accepted Answer

A) limestone,animals,and plants. 
B) oil,bicarbonate,and sugar. 
C) carbon dioxide and coal. 
D) all of these choices 
A) limestone,animals,and plants. 
B) oil,bicarbonate,and sugar. 
C) carbon dioxide and coal. 
D) all of these choices

Question 6

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 7

Which of the following statements about biogeochemical cycles is true?

Accepted Answer

A) They only include processes conducted by or within living organisms. 
B) They pertain only to the abiotic environment. 
C) They describe the movement of water and other materials through an ecosystem. 
D) They only pertain to exchanges and interactions that occur within the atmosphere. 
A) They only include processes conducted by or within living organisms. 
B) They pertain only to the abiotic environment. 
C) They describe the movement of water and other materials through an ecosystem. 
D) They only pertain to exchanges and interactions that occur within the atmosphere.

Question 8

Which of the following is not an example of a fossil fuel?

Accepted Answer

A) wood 
B) oil 
C) natural gas 
D) coal 
A) wood 
B) oil 
C) natural gas 
D) coal

Question 9

Nitrogen gas accounts for what percentage of the atmosphere?

Accepted Answer

A) 0.03% 
B) 1% 
C) approximately 50% 
D) 78% 
A) 0.03% 
B) 1% 
C) approximately 50% 
D) 78%

Question 10

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 11

Photosynthesis is:

Accepted Answer

A) A physical law,which states that when energy is converted from one form to another,some of it is degraded into heat,a less usable form that disperses into the environment. 
B) The biological process that captures light energy and transforms it into the chemical energy of organic molecules,which are manufactured from carbon dioxide and water. 
C) The measure of the amount of usable energy available to do work in the universe. 
D) The process that involves potential energy being converted to kinetic energy. 
A) A physical law,which states that when energy is converted from one form to another,some of it is degraded into heat,a less usable form that disperses into the environment. 
B) The biological process that captures light energy and transforms it into the chemical energy of organic molecules,which are manufactured from carbon dioxide and water. 
C) The measure of the amount of usable energy available to do work in the universe. 
D) The process that involves potential energy being converted to kinetic energy.

Question 12

In relationships that involve predation or herbivory,the organism that is the victim often has various defenses against being consumed.Compare and contrast plant defenses against herbivores and animal prey defenses against predators.

Accepted Answer

Plants because they are immobile have to

Question 13

In order for a parasite to be successful,it must?

Accepted Answer

A) live outside its host's body 
B) live inside its host's body 
C) do no harm to the host organism 
D) keep its host alive 
A) live outside its host's body 
B) live inside its host's body 
C) do no harm to the host organism 
D) keep its host alive

Question 14

Which of the following statements is TRUE?

Accepted Answer

A) Predation only favors the predator with the evolution of more efficient ways to catch prey. 
B) Predation only favors the prey with the evolution of more efficient ways to escape predators. 
C) Predation exerts a selective force on the prey,favoring characteristics that reduce the probability of capture. 
D) Predation exerts a selective force on the predator,favoring characteristics that reduce the probability of prey capture. 
A) Predation only favors the predator with the evolution of more efficient ways to catch prey. 
B) Predation only favors the prey with the evolution of more efficient ways to escape predators. 
C) Predation exerts a selective force on the prey,favoring characteristics that reduce the probability of capture. 
D) Predation exerts a selective force on the predator,favoring characteristics that reduce the probability of prey capture.

Question 15

Which of the following is an example of a biotic component of an ecosystem?

Accepted Answer

A) the climate 
B) a community 
C) water 
D) synthetic pesticides 
A) the climate 
B) a community 
C) water 
D) synthetic pesticides

Question 16

Which of the following is NOT a component of the hydrosphere?

Accepted Answer

A) sea ice. 
B) tropical rainstorms. 
C) soil. 
D) hail. 
A) sea ice. 
B) tropical rainstorms. 
C) soil. 
D) hail.

Question 17

The study of energy and its transformations is called:

Accepted Answer

A) biogeochemical cycles 
B) kinetic energy 
C) potential energy 
D) thermodynamics 
A) biogeochemical cycles 
B) kinetic energy 
C) potential energy 
D) thermodynamics

Question 18

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 19

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 20

List and briefly explain one way each how human activities are impacting biogeochemical cycles of carbon,nitrogen,phosphorous and water.

Accepted Answer

Human activities are increasingly distur

What important role do decomposers play in the ecosystem?

What is predation?

How does the phosphorus cycle DIFFER from the carbon cycle?

What is coevolution?

In the carbon cycle,carbon can be found in:

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

Which of the following statements about biogeochemical cycles is true?

Which of the following is not an example of a fossil fuel?

Nitrogen gas accounts for what percentage of the atmosphere?

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

Photosynthesis is:

In relationships that involve predation or herbivory,the organism that is the victim often has various defenses against being consumed.Compare and contrast plant defenses against herbivores and animal prey defenses against predators.

In order for a parasite to be successful,it must?

Which of the following statements is TRUE?

Which of the following is an example of a biotic component of an ecosystem?

Which of the following is NOT a component of the hydrosphere?

The study of energy and its transformations is called:

A secondary consumer would eat:

Which of the following statements about energy is TRUE?

List and briefly explain one way each how human activities are impacting biogeochemical cycles of carbon,nitrogen,phosphorous and water.

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

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Exam 5: How Ecosystems Work

What important role do decomposers play in the ecosystem?

What is predation?

How does the phosphorus cycle DIFFER from the carbon cycle?

What is coevolution?

In the carbon cycle,carbon can be found in:

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

Which of the following statements about biogeochemical cycles is true?

Which of the following is not an example of a fossil fuel?

Nitrogen gas accounts for what percentage of the atmosphere?

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

Photosynthesis is:

In relationships that involve predation or herbivory,the organism that is the victim often has various defenses against being consumed.Compare and contrast plant defenses against herbivores and animal prey defenses against predators.

In order for a parasite to be successful,it must?

Which of the following statements is TRUE?

Which of the following is an example of a biotic component of an ecosystem?

Which of the following is NOT a component of the hydrosphere?

The study of energy and its transformations is called:

A secondary consumer would eat:

Which of the following statements about energy is TRUE?

List and briefly explain one way each how human activities are impacting biogeochemical cycles of carbon,nitrogen,phosphorous and water.

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