Question 1

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

Accepted Answer

The answer of Are humans capable of upsetting global biogeochemical...

Question 2

Hail and snow are examples of

Accepted Answer

A)   evaporation.
B)   precipitation.
C)   runoff.
D)   transpiration.
E)   aquifers.F) B) and D)
G) A) and C)

Question 3

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

Accepted Answer

A) True 
 B)False

Question 4

Which of the following defines an ecosystem?

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 B)
G) All of the above

Question 5

Both energy and chemicals cycle through an ecosystem.

Accepted Answer

A) True 
 B)False

Question 6

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

Question 7

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

Accepted Answer

The answer of Do all ecological pyramids have a broad...

Question 8

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

Accepted Answer

A) True 
 B)False

Question 9

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

Accepted Answer

A) True 
 B)False

Question 10

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 E)
G) A) and D)

Question 11

Life on Earth is dependent on a continued input of energy from the sun.

Accepted Answer

A) True 
 B)False

Question 12

What do autotrophs require in order to produce food for themselves and all the heterotrophs?

Accepted Answer

A)   sunlight, inorganic nutrients
B)   sunlight, organic nutrients
C)   an energy source, water
D)   an energy source, inorganic nutrients
E)   heat, waterF) A) and E)
G) C) and D)

Question 13

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

Accepted Answer

A) True 
 B)False

Question 14

What is the name of the frigid ecosystem bordering the North Pole?

Accepted Answer

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

Question 15

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

Question 16

How does phosphate enter the soil?

Accepted Answer

A)   conversion in the atmosphere due to lightning
B)   precipitation from clouds
C)   weathering of rocks
D)   photosynthesis
E)   cellular respirationF) A) and C)
G) A) and E)

Question 17

Which term is analogous to the word "niche"?

Accepted Answer

A)   address
B)   job description
C)   properties
D)   needs
E)   desiresF) None of the above
G) B) and D)

Question 18

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 C)
G) A) and B)

Question 19

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 20

Which of the following is not a greenhouse gas?

Accepted Answer

A)   oxygen
B)   carbon dioxide
C)   methane
D)   nitrous oxide
E)   hydrofluorocarbonsF) A) and C)
G) B) and C)

Exam 24: Ecology and the Nature of Ecosystems

Life on Earth is dependent on a continued input of energy from the sun.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

What do autotrophs require in order to produce food for themselves and all the heterotrophs?

Correct AnswerverifiedShow Answer

Which term is analogous to the word "niche"?

Correct AnswerverifiedShow Answer

Which of the following is not a greenhouse gas?

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

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Both energy and chemicals cycle through an ecosystem.

Correct AnswerverifiedShow Answer

Which of the following defines an ecosystem?

Correct AnswerverifiedShow Answer

What is the name of the frigid ecosystem bordering the North Pole?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

How does phosphate enter the soil?

Correct AnswerverifiedShow Answer

What two characteristics define a biome?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

What is the primary source of carbon for aquatic algae?

Correct AnswerverifiedShow Answer

Hail and snow are examples of

Correct AnswerverifiedShow Answer

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