Question 1

What is involved in the process of denitrification?

Accepted Answer

A)   conversion of nitrogen gas to ammonium
B)   conversion of nitrogen gas to nitrate
C)   conversion of ammonium to nitrate
D)   conversion of nitrite to nitrate
E)   conversion of nitrate to nitrogen gasF) A) and D)
G) None of the above

Question 2

When a rabbit eats a bean plant,a portion of the available energy moves into the rabbit's body.When the rabbit is eaten by a hawk,a portion of the available energy moves into the hawk's body.Indicate the various areas that energy is used by an organism,and why only 10% of the rabbit's available energy will move to the hawk.

Accepted Answer

When an organism consumes energy,only 10...

Question 3

Which of the following is a legume involved in housing nitrogen-fixing bacteria?

Accepted Answer

A)   ferns
B)   oak trees
C)   grass
D)   beans
E)   rosesF) A) and C)
G) A) and B)

Question 4

When water evaporates from the ocean,it leaves the salts behind.

Accepted Answer

A) True 
 B)False

Question 5

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) B) and C)
G) A) and B)

Question 6

What is another name for the taiga?

Accepted Answer

A)   savanna
B)   tropical rain forest
C)   prairie
D)   coniferous forest
E)   tundraF) B) and E)
G) All of the above

Question 7

Water vapor contributes to global warming.

Accepted Answer

A) True 
 B)False

Question 8

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) A) and B)
G) A) and E)

Question 9

Which of the following biogeochemical cycles is a sedimentary cycle?

Accepted Answer

A)   carbon
B)   nitrogen
C)   phosphorus
D)   water
E)   iceF) B) and E)
G) C) and D)

Question 10

All of the energy in an ecosystem eventually becomes

Accepted Answer

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

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 E)
G) B) and E)

Question 12

What is another name for autotrophs?

Accepted Answer

A)   herbivores
B)   carnivores
C)   omnivores
D)   producers
E)   detritus feedersF) A) and B)
G) A) and C)

Question 13

Organisms that live in an aquatic environment get their carbon from calcium carbonate shells on the bottom,instead of from carbon dioxide in the environment.

Accepted Answer

A) True 
 B)False

Question 14

Do all ecological pyramids have a broad base with a smaller top?

Accepted Answer

A) True 
 B)False

Question 15

Which of the following is not an abiotic component of an ecosystem?

Accepted Answer

A)   decomposers
B)   soil type
C)   amount of rainfall
D)   temperature
E)   amount of sunlightF) A) and B)
G) A) and C)

Question 16

If the first-level carnivore consumes 500 kg of energy from herbivore tissue,how much is available to the second-level carnivores?

Accepted Answer

A)   500 kg
B)   100 kg
C)   50 kg
D)   10 kg
E)   5 kgF) A) and C)
G) A) and D)

Question 17

What organism would be at the second level in a detrital food web?

Accepted Answer

A)   leaves
B)   detritus
C)   birds
D)   earthworms
E)   shrewsF) A) and C)
G) C) and E)

Question 18

The atmosphere would be considered what component of a chemical cycle?

Accepted Answer

A)   reservoir
B)   exchange pool
C)   biotic community
D)   source
E)   none of theseF) A) and E)
G) B) and E)

Question 19

What is the primary source of carbon for aquatic algae?

Accepted Answer

A)   calcium carbonate
B)   calcium chloride
C)   bicarbonate
D)   carbon dioxide
E)   carbon monoxideF) B) and E)
G) A) and E)

Question 20

The richest marine ecosystems are those in the open water where large fish abound.

Accepted Answer

A) True 
 B)False

Exam 24: Ecology and the Nature of Ecosystems

Correct Answer
verified
When an organism consumes energy,only 10...
View Answer

Which of the following biogeochemical cycles is a sedimentary cycle?

Correct Answer
verified

Do all ecological pyramids have a broad base with a smaller top?

Correct Answer
verified

What is another name for autotrophs?

Correct Answer
verified

All of the energy in an ecosystem eventually becomes

Correct Answer
verified

The richest marine ecosystems are those in the open water where large fish abound.

Correct Answer
verified

How is the nitrogen cycle like the carbon cycle?

Correct Answer
verified

What is another name for the taiga?

Correct Answer
verified

The atmosphere would be considered what component of a chemical cycle?

Correct Answer
verified

When water evaporates from the ocean,it leaves the salts behind.

Correct Answer
verified

Water vapor contributes to global warming.

Correct Answer
verified

If the first-level carnivore consumes 500 kg of energy from herbivore tissue,how much is available to the second-level carnivores?

Correct Answer
verified

How is carbon dioxide made availabe to living organisms?

Correct Answer
verified

Which of the following is not an abiotic component of an ecosystem?

Correct Answer
verified

Which of the following is a legume involved in housing nitrogen-fixing bacteria?

Correct Answer
verified

What is the primary source of carbon for aquatic algae?

Correct Answer
verified

What is involved in the process of denitrification?

Correct Answer
verified

Organisms that live in an aquatic environment get their carbon from calcium carbonate shells on the bottom,instead of from carbon dioxide in the environment.

Correct Answer
verified

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

Correct Answer
verified

What organism would be at the second level in a detrital food web?

Correct Answer
verified

Exam 24: Ecology and the Nature of Ecosystems

Correct AnswerverifiedWhen an organism consumes energy,only 10...View AnswerShow Answer

Which of the following biogeochemical cycles is a sedimentary cycle?

Correct AnswerverifiedShow Answer

Do all ecological pyramids have a broad base with a smaller top?

Correct AnswerverifiedShow Answer

What is another name for autotrophs?

Correct AnswerverifiedShow Answer

All of the energy in an ecosystem eventually becomes

Correct AnswerverifiedShow Answer

The richest marine ecosystems are those in the open water where large fish abound.

Correct AnswerverifiedShow Answer

How is the nitrogen cycle like the carbon cycle?

Correct AnswerverifiedShow Answer

What is another name for the taiga?

Correct AnswerverifiedShow Answer

The atmosphere would be considered what component of a chemical cycle?

Correct AnswerverifiedShow Answer

When water evaporates from the ocean,it leaves the salts behind.

Correct AnswerverifiedShow Answer

Water vapor contributes to global warming.

Correct AnswerverifiedShow Answer

If the first-level carnivore consumes 500 kg of energy from herbivore tissue,how much is available to the second-level carnivores?

Correct AnswerverifiedShow Answer

How is carbon dioxide made availabe to living organisms?

Correct AnswerverifiedShow Answer

Which of the following is not an abiotic component of an ecosystem?

Correct AnswerverifiedShow Answer

Which of the following is a legume involved in housing nitrogen-fixing bacteria?

Correct AnswerverifiedShow Answer

What is the primary source of carbon for aquatic algae?

Correct AnswerverifiedShow Answer

What is involved in the process of denitrification?

Correct AnswerverifiedShow Answer

Organisms that live in an aquatic environment get their carbon from calcium carbonate shells on the bottom,instead of from carbon dioxide in the environment.

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

What organism would be at the second level in a detrital food web?

Correct AnswerverifiedShow Answer

Correct Answer
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When an organism consumes energy,only 10...
View Answer

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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