Question 1

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 2

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)  soil 
A)  the ocean 
B)  carbon dioxide in the atmosphere 
C)  plants 
D)  algae 
E)  soil B

Question 3

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

Accepted Answer

A)  reservoir 
B)  exchange pool 
C)  biotic community 
A)  reservoir 
B)  exchange pool 
C)  biotic community A

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

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 6

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 7

Decomposers perform a valuable service because they recycle nutrients.

Accepted Answer

A) True 
 B)False

Question 8

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

Accepted Answer

A) True 
 B)False

Question 9

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 found 
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 found

Question 10

Which of the following biogeochemical cycles is a sedimentary cycle?

Accepted Answer

A)  carbon 
B)  nitrogen 
C)  phosphorus 
A)  carbon 
B)  nitrogen 
C)  phosphorus

Question 11

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)  tundra 
A)  coniferous forests 
B)  prairies 
C)  temperate forests 
D)  taiga 
E)  tundra

Question 12

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

Accepted Answer

YES
Explanation: Human activit

Question 13

What does the word "trophic" mean?

Accepted Answer

A)  energy 
B)  niche 
C)  web 
D)  feeding 
E)  biomass 
A)  energy 
B)  niche 
C)  web 
D)  feeding 
E)  biomass

Question 14

There is no reservoir of carbon for the carbon cycle.

Accepted Answer

A) True 
 B)False

Question 15

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 gas 
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 gas

Question 16

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

Accepted Answer

A) True 
 B)False

Question 17

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). 
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).

Question 18

What is another name for the taiga?

Accepted Answer

A)  savanna 
B)  tropical rain forest 
C)  prairie 
D)  coniferous forest 
E)  tundra 
A)  savanna 
B)  tropical rain forest 
C)  prairie 
D)  coniferous forest 
E)  tundra

Question 19

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

Accepted Answer

A) True 
 B)False

Question 20

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 feeder 
A)  producer 
B)  herbivore 
C)  carnivore 
D)  omnivore 
E)  detritus feeder

Exam 23: Global Ecology and Human Interferences

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

What is the exchange pool for the carbon cycle?

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

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

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.

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

Decomposers perform a valuable service because they recycle nutrients.

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

Which of the following defines an ecosystems?

Which of the following biogeochemical cycles is a sedimentary cycle?

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

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

What does the word "trophic" mean?

There is no reservoir of carbon for the carbon cycle.

What is involved in the process of denitrification?

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

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

What is another name for the taiga?

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

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

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