Question 1

Plants do both photosynthesis and cellular respiration.

Accepted Answer

A) True 
 B)False  True

Question 2

Being that grey wolves are a keystone species in North America, after their reintroduction into the Yellowstone ecosystem, which of the following events occurred?

Accepted Answer

A) The number of predators in the ecosystem was increased. 
B) The number of prey in the ecosystem was reduced. 
C) The plant composition became more varied and lush. 
D) All of the above occurred. 
A) The number of predators in the ecosystem was increased. 
B) The number of prey in the ecosystem was reduced. 
C) The plant composition became more varied and lush. 
D) All of the above occurred. D

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. D

Question 4

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 5

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 6

Which of the following processes plays an important role in the phosphorus cycle?

Accepted Answer

A) erosion 
B) nitrogen fixation 
C) combustion 
D) cellular respiration 
A) erosion 
B) nitrogen fixation 
C) combustion 
D) cellular respiration

Question 7

How does this diagram illustrate the first and second laws of thermodynamics? What are the consequences of this energy flow for ecosystems?

Accepted Answer

The first law of thermodynamics states t

Question 8

Define ecological niche and explain the role of limiting resources as well as resource partitioning in the determination of an organism's ecological niche. Use examples to illustrate your response.

Accepted Answer

Every organism is thought to have its ow

Question 9

Which of the following is an example of interspecific competition?

Accepted Answer

A) Two gray squirrels collecting nuts from the same tree. 
B) Mites and nematodes all feeding on the same decomposing plant. 
C) A group of cliff swallows feeding on a swarm of mosquitoes. 
D) A honeybee feeding on several species of flowers. 
A) Two gray squirrels collecting nuts from the same tree. 
B) Mites and nematodes all feeding on the same decomposing plant. 
C) A group of cliff swallows feeding on a swarm of mosquitoes. 
D) A honeybee feeding on several species of flowers.

Question 10

Define symbiosis. Identify and briefly describe three different types of symbiotic relationships as indicated in the images below.

Accepted Answer

Symbiosis is the intimate relationship b

Question 11

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 12

What do we call an area of land that runoff drains into?

Accepted Answer

A) watershed 
B) estuary 
C) groundwater 
D) niche 
A) watershed 
B) estuary 
C) groundwater 
D) niche

Question 13

Competition that occurs among individuals within a population is known as _____________

Accepted Answer

Intraspeci

Question 14

Living space, temperature, sunlight, soil, wind, and precipitation make up the biotic components of the environment.

Accepted Answer

A) True 
 B)False

Question 15

Usable energy has high entropy, whereas disorganized energy has low entropy.

Accepted Answer

A) True 
 B)False

Question 16

Approximately what percentage of the atmosphere is CO2?

Accepted Answer

A) 0.001% 
B) 0.04% 
C) 10% 
D) 30% 
A) 0.001% 
B) 0.04% 
C) 10% 
D) 30%

Question 17

This figure BEST illustrates:

Accepted Answer

A) how energy is recycled in an ecosystem. 
B) how our atmosphere maintains its temperature. 
C) the importance of decomposers in an ecosystem. 
D) the one-way flow of energy in an ecosystem. 
A) how energy is recycled in an ecosystem. 
B) how our atmosphere maintains its temperature. 
C) the importance of decomposers in an ecosystem. 
D) the one-way flow of energy in an ecosystem.

Question 18

Organisms are assigned trophic levels based on the number of energy transfer steps from the source of energy to that level.

Accepted Answer

A) True 
 B)False

Question 19

Which term encompasses the other four?

Accepted Answer

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

Question 20

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.

Plants do both photosynthesis and cellular respiration.

Being that grey wolves are a keystone species in North America, after their reintroduction into the Yellowstone ecosystem, which of the following events occurred?

How does the phosphorus cycle DIFFER from the carbon cycle?

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.

What is predation?

Which of the following processes plays an important role in the phosphorus cycle?

How does this diagram illustrate the first and second laws of thermodynamics? What are the consequences of this energy flow for ecosystems?

Define ecological niche and explain the role of limiting resources as well as resource partitioning in the determination of an organism's ecological niche. Use examples to illustrate your response.

Which of the following is an example of interspecific competition?

Define symbiosis. Identify and briefly describe three different types of symbiotic relationships as indicated in the images below.

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

What do we call an area of land that runoff drains into?

Competition that occurs among individuals within a population is known as _____________

Living space, temperature, sunlight, soil, wind, and precipitation make up the biotic components of the environment.

Usable energy has high entropy, whereas disorganized energy has low entropy.

Approximately what percentage of the atmosphere is CO₂?

This figure BEST illustrates:

Organisms are assigned trophic levels based on the number of energy transfer steps from the source of energy to that level.

Which term encompasses the other four?

What is coevolution?

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

Exam 5: How Ecosystems Work

Plants do both photosynthesis and cellular respiration.

Being that grey wolves are a keystone species in North America, after their reintroduction into the Yellowstone ecosystem, which of the following events occurred?

How does the phosphorus cycle DIFFER from the carbon cycle?

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.

What is predation?

Which of the following processes plays an important role in the phosphorus cycle?

How does this diagram illustrate the first and second laws of thermodynamics? What are the consequences of this energy flow for ecosystems?

Define ecological niche and explain the role of limiting resources as well as resource partitioning in the determination of an organism's ecological niche. Use examples to illustrate your response.

Which of the following is an example of interspecific competition?

Define symbiosis. Identify and briefly describe three different types of symbiotic relationships as indicated in the images below.

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

What do we call an area of land that runoff drains into?

Competition that occurs among individuals within a population is known as _____________

Living space, temperature, sunlight, soil, wind, and precipitation make up the biotic components of the environment.

Usable energy has high entropy, whereas disorganized energy has low entropy.

Approximately what percentage of the atmosphere is CO2?

This figure BEST illustrates:

Organisms are assigned trophic levels based on the number of energy transfer steps from the source of energy to that level.

Which term encompasses the other four?

What is coevolution?

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

Approximately what percentage of the atmosphere is CO₂?