Question 1

What is another name for autotrophs?

Accepted Answer

A)   herbivores
B)   carnivores
C)   omnivores
D)   producers
E)   detritus feedersF) None of the above
G) A) and B)

Question 2

What is the loss of water from plants called?

Accepted Answer

A)   runoff
B)   precipitation
C)   evaporation
D)   transpiration
E)   transferenceF) C) and D)
G) B) and E)

Question 3

There are no reservoirs of carbon for the carbon cycle.

Accepted Answer

A) True 
 B)False  False

Question 4

The bottom of the ocean floor is not considered part of the biosphere because no sunlight reaches it.

Accepted Answer

A) True 
 B)False

Question 5

Phosphorus is needed by living organisms because it is a part of proteins.

Accepted Answer

A) True 
 B)False  False

Question 6

Diagram an ecological pyramid that consists of four trophic levels. Indicate the category of organisms at each level and provide an example of an organism for each category.

Accepted Answer

The 1st trophic level of an ecological p...

Question 7

Cultural eutrophication can be caused by

Accepted Answer

A)   respiration and transpiration.
B)   mercury from industrial sources.
C)   bacteria and viruses from sewage and barnyard waste.
D)   detergents, fertilizers, and sewage treatment plants.
E)   biological magnification.F) B) and E)
G) A) and B)

Question 8

When energy flows from one trophic level to another, only a small amount is actually used. Which of the following uses of energy by an organism allows for the least amount of transfer to a different trophic level?

Accepted Answer

A)   cellular respiration
B)   growth
C)   death
D)   excretion
E)   reproductionF) A) and C)
G) All of the above

Question 9

Decomposers perform a valuable service because they recycle nutrients.

Accepted Answer

A) True 
 B)False

Question 10

Which of the following is associated with groundwater mining?

Accepted Answer

A)   aquifers
B)   standing water lakes and ponds) 
C)   ice
D)   ocean
E)   runoffF) A) and E)
G) All of the above

Question 11

How is carbon dioxide made availabe to living organisms?

Accepted Answer

A)   by breathing
B)   by cellular respiration
C)   by photosynthesis
D)   by combustion
E)   by decayF) A) and D)
G) B) and C)

Question 12

Timothy has become a vegan. He does not eat any meat, eggs, milk, or cheese. How would Timothy be classified?

Accepted Answer

A)   producer
B)   herbivore
C)   carnivore
D)   omnivore
E)   detritus feederF) C) and D)
G) A) and E)

Question 13

Biological magnification occurs as organisms get larger due to increased water, air, and soil pollution.

Accepted Answer

A) True 
 B)False

Question 14

How is the nitrogen cycle like the carbon cycle?

Accepted Answer

A)   Both are gaseous cycles.
B)   Both require photosynthesis to utilize the chemical.
C)   Both are lost to the atmosphere during cellular respiration.
D)   Both are stored in fossil fuels.
E)   Neither has a reservoir in nature.F) D) and E)
G) A) and E)

Question 15

What does the word "trophic" mean?

Accepted Answer

A)   energy
B)   niche
C)   web
D)   feeding
E)   biomassF) A) and C)
G) C) and D)

Question 16

What kind of an organism is an earthworm?

Accepted Answer

A)   producer
B)   herbivore
C)   carnivore
D)   omnivore
E)   detritus feederF) B) and D)
G) All of the above

Question 17

All of the energy in an ecosystem eventually becomes

Accepted Answer

A)   sunlight.
B)   feces.
C)   heat.
D)   detritus.
E)   body mass.F) B) and E)
G) B) and C)

Question 18

The global climate has already warmed about 0.6 degrees Celsius since the Industrial Revolution.

Accepted Answer

A) True 
 B)False  True

Question 19

Which is at the beginning of a grazing food web?

Accepted Answer

A)   detritus
B)   earthworms
C)   beetles
D)   shrews
E)   leavesF) C) and D)
G) A) and B)

Question 20

One of the consequences of building roads, parking lots, and buildings is

Accepted Answer

A)   increased evaporation from the ocean.
B)   decreased precipitation over the oceans and the land.
C)   increased transpiration of plants in the vicinity.
D)   increased runoff into nearby streams, lakes, wetlands, or the ocean.
E)   a decrease in the level of the water table.F) A) and B)
G) B) and E)

Exam 24: Ecology and the Nature of Ecosystems

What is another name for autotrophs?

Correct AnswerverifiedShow Answer

What is the loss of water from plants called?

Correct AnswerverifiedShow Answer

There are no reservoirs of carbon for the carbon cycle.

Correct AnswerverifiedFalse

The bottom of the ocean floor is not considered part of the biosphere because no sunlight reaches it.

Correct AnswerverifiedShow Answer

Phosphorus is needed by living organisms because it is a part of proteins.

Correct AnswerverifiedFalse

Diagram an ecological pyramid that consists of four trophic levels. Indicate the category of organisms at each level and provide an example of an organism for each category.

Correct AnswerverifiedThe 1st trophic level of an ecological p...View AnswerShow Answer

Cultural eutrophication can be caused by

Correct AnswerverifiedShow Answer

When energy flows from one trophic level to another, only a small amount is actually used. Which of the following uses of energy by an organism allows for the least amount of transfer to a different trophic level?

Correct AnswerverifiedShow Answer

Decomposers perform a valuable service because they recycle nutrients.

Correct AnswerverifiedShow Answer

Which of the following is associated with groundwater mining?

Correct AnswerverifiedShow Answer

How is carbon dioxide made availabe to living organisms?

Correct AnswerverifiedShow Answer

Timothy has become a vegan. He does not eat any meat, eggs, milk, or cheese. How would Timothy be classified?

Correct AnswerverifiedShow Answer

Biological magnification occurs as organisms get larger due to increased water, air, and soil pollution.

Correct AnswerverifiedShow Answer

How is the nitrogen cycle like the carbon cycle?

Correct AnswerverifiedShow Answer

What does the word "trophic" mean?

Correct AnswerverifiedShow Answer

What kind of an organism is an earthworm?

Correct AnswerverifiedShow Answer

All of the energy in an ecosystem eventually becomes

Correct AnswerverifiedShow Answer

The global climate has already warmed about 0.6 degrees Celsius since the Industrial Revolution.

Correct AnswerverifiedTrue

Which is at the beginning of a grazing food web?

Correct AnswerverifiedShow Answer

One of the consequences of building roads, parking lots, and buildings is

Correct AnswerverifiedShow Answer

Correct Answer
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False

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False

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The 1st trophic level of an ecological p...
View Answer

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True

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