Question 1

Minerals in rocks are considered what type of component of a chemical cycle?

Accepted Answer

A)   reservoir
B)   exchange pool
C)   biotic communityD) All of the above
E) B) and C) A

Question 2

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 3

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

Accepted Answer

A) True 
 B)False

Question 4

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

Accepted Answer

A) True 
 B)False

Question 5

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) B) and E)
G) C) and D)

Question 6

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) D) and E)

Question 7

There is no reservoir of carbon for the carbon cycle.

Accepted Answer

A) True 
 B)False

Question 8

Which of the following defines an ecosystems?

Accepted Answer

A)   a group of organisms of the same species interacting together
B)   all of the living organisms in an area interacting together
C)   all living organisms and the nonliving environment interacting together
D)   aspects of the nonliving environment interacting together
E)   all the places on Earth where living organisms can be foundF) A) and C)
G) B) and C)

Question 9

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) D) and E)

Question 10

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 11

The ratio between the uptake of carbon dioxide by photosynthesis and the release of carbon dioxide by respiration is approximately

Accepted Answer

A)   one (i.e., about the same) .
B)   2 (i.e., twice as much carbon dioxide is taken up by photosynthesis as is released by respiration) .
C)   5 (i.e., five times as much carbon dioxide is taken up by photosynthesis as is released by respiration) .
D)   0.5 (i.e., half as much carbon dioxide is taken up by photosynthesis as is released by respiration) .
E)   0.1 (i.e., one tenth as much carbon dioxide is taken up by photosynthesis as is released by respiration) .F) B) and E)
G) A) and D)

Question 12

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

Accepted Answer

A) True 
 B)False

Question 13

What does the word "trophic" mean?

Accepted Answer

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

Question 14

Decomposers perform a valuable service because they recycle nutrients.

Accepted Answer

A) True 
 B)False

Question 15

A biogeochemical cycle involves only the abiotic components of an ecosystem and describes how chemicals circulate through those components.

Accepted Answer

A) True 
 B)False

Question 16

A detrital food web and a grazing food web are separate because each starts at a different level.

Accepted Answer

A) True 
 B)False  False

Question 17

Which of the following biogeochemical cycles is a sedimentary cycle?

Accepted Answer

A)   carbon
B)   nitrogen
C)   phosphorusD) None of the above
E) All of the above

Question 18

Are humans capable of upsetting global biogeochemical cycles with their activities?

Accepted Answer

YES
Explanation: Human activit...

Question 19

From the North Pole south,what is the first type of ecosystem encountered?

Accepted Answer

A)   coniferous forests
B)   prairies
C)   temperate forests
D)   taiga
E)   tundraF) D) and E)
G) B) and D)

Question 20

What is the exchange pool for the carbon cycle?

Accepted Answer

A)   the ocean
B)   carbon dioxide in the atmosphere
C)   plants
D)   algae
E)   soilF) C) and E)
G) A) and C) B

Exam 23: Global Ecology and Human Interferences

Minerals in rocks are considered what type of component of a chemical cycle?

Correct AnswerverifiedA

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

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

What is involved in the process of denitrification?

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

There is no reservoir of carbon for the carbon cycle.

Correct AnswerverifiedShow Answer

Which of the following defines an ecosystems?

Correct AnswerverifiedShow Answer

What is another name for the taiga?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The ratio between the uptake of carbon dioxide by photosynthesis and the release of carbon dioxide by respiration is approximately

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

What does the word "trophic" mean?

Correct AnswerverifiedShow Answer

Decomposers perform a valuable service because they recycle nutrients.

Correct AnswerverifiedShow Answer

A biogeochemical cycle involves only the abiotic components of an ecosystem and describes how chemicals circulate through those components.

Correct AnswerverifiedShow Answer

A detrital food web and a grazing food web are separate because each starts at a different level.

Correct AnswerverifiedFalse

Which of the following biogeochemical cycles is a sedimentary cycle?

Correct AnswerverifiedShow Answer

Are humans capable of upsetting global biogeochemical cycles with their activities?

Correct AnswerverifiedYESExplanation: Human activit...View AnswerShow Answer

From the North Pole south,what is the first type of ecosystem encountered?

Correct AnswerverifiedShow Answer

What is the exchange pool for the carbon cycle?

Correct AnswerverifiedB

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A

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False

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YES
Explanation: Human activit...
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B