Question 1

How much of the food energy taken in by an herbivore is passed on to a carnivore?

Accepted Answer

A)   1%
B)   5%
C)   10%
D)   50%
E)   90%F) B) and D)
G) B) and C)

Question 2

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 3

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 4

What is at the beginning of a grazing food chain?

Accepted Answer

A)   detritus
B)   earthworms
C)   beetles
D)   shrews
E)   leavesF) A) and C)
G) All of the above E

Question 5

Both energy and chemicals cycle through an ecosystem.

Accepted Answer

A) True 
 B)False  False

Question 6

What kind of an organism is an earthworm?

Accepted Answer

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

Question 7

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) All of the above
G) A) and B)

Question 8

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 B)
G) A) and C)

Question 9

Water vapor contributes to global warming.

Accepted Answer

A) True 
 B)False

Question 10

If the first-level carnivores 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 B)
G) A) and C)

Question 11

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

Accepted Answer

A) True 
 B)False

Question 12

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 E)
G) B) and D)

Question 13

Which of the following is on the same trophic level as a rabbit?

Accepted Answer

A)   deer
B)   snake
C)   fox
D)   hawk
E)   beetleF) B) and C)
G) A) and B)

Question 14

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

Accepted Answer

A)   leaves
B)   detritus
C)   birds
D)   earthworms
E)   shrewsF) All of the above
G) C) and E)

Question 15

What two characteristics define a biome?

Accepted Answer

A)   temperature and the types of plants found there
B)   amount of precipitation and the types of plants found there
C)   temperature and rainfall
D)   latitude and rainfall
E)   altitude and temperatureF) B) and E)
G) A) and E)

Question 16

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

Accepted Answer

FALS E

Question 17

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

Accepted Answer

A) True 
 B)False

Question 18

Most ecosystems contain quaternary consumers.

Accepted Answer

A) True 
 B)False

Question 19

Which of the following biogeochemical cycles is a sedimentary cycle?

Accepted Answer

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

Question 20

Almost 100% of the energy taken in by plants from the sun is available to an ecosystem.

Accepted Answer

A) True 
 B)False

Exam 23: Global Ecology and Human Interferences

How much of the food energy taken in by an herbivore is passed on to a carnivore?

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

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

What is at the beginning of a grazing food chain?

Correct AnswerverifiedE

Both energy and chemicals cycle through an ecosystem.

Correct AnswerverifiedFalse

What kind of an organism is an earthworm?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Water vapor contributes to global warming.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following is on the same trophic level as a rabbit?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

What two characteristics define a biome?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedFALS E

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

Correct AnswerverifiedShow Answer

Most ecosystems contain quaternary consumers.

Correct AnswerverifiedShow Answer

Which of the following biogeochemical cycles is a sedimentary cycle?

Correct AnswerverifiedShow Answer

Almost 100% of the energy taken in by plants from the sun is available to an ecosystem.

Correct AnswerverifiedShow Answer

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

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False

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FALS E

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