Question 1

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

Accepted Answer

A) True 
 B)False  True

Question 2

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

Question 3

To say that something is a producer is to give information regarding its niche in an ecosystem.

Accepted Answer

A) True 
 B)False  True

Question 4

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

Accepted Answer

A) leaves 
B) detritus 
C) birds 
D) earthworms 
E) shrews 
A) leaves 
B) detritus 
C) birds 
D) earthworms 
E) shrews

Question 5

What is the advantage of constructing an ecological pyramid based on biomass?

Accepted Answer

A) Aquatic ecosystem pyramids actually look like pyramids. 
B) Size of the various organisms is eliminated as a factor. 
C) This includes the detrital food web as well as the grazing food web in one pyramid. 
D) This takes into account nutrient cycling as well as energy flow. 
E) This eliminates the need to include producers in the pyramid. 
A) Aquatic ecosystem pyramids actually look like pyramids. 
B) Size of the various organisms is eliminated as a factor. 
C) This includes the detrital food web as well as the grazing food web in one pyramid. 
D) This takes into account nutrient cycling as well as energy flow. 
E) This eliminates the need to include producers in the pyramid.

Question 6

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) roses 
A) ferns 
B) oak trees 
C) grass 
D) beans 
E) roses

Question 7

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 8

Most ecosystems contain quaternary consumers.

Accepted Answer

A) True 
 B)False

Question 9

List and explain the six steps in the hydrological cycle.

Accepted Answer

1.Evaporation occurs as the sun causes f

Question 10

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

Accepted Answer

No,because in some instances,such as aq

Question 11

What is the reservoir for the water cycle?

Accepted Answer

A) ocean 
B) lakes and rivers 
C) rainfall 
D) aquifers 
E) atmosphere 
A) ocean 
B) lakes and rivers 
C) rainfall 
D) aquifers 
E) atmosphere

Question 12

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 13

What kind of an organism is an earthworm?

Accepted Answer

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

Question 14

Which of the following biogeochemical cycles is a sedimentary cycle?

Accepted Answer

A) carbon 
B) nitrogen 
C) phosphorus 
D) water 
E) ice 
A) carbon 
B) nitrogen 
C) phosphorus 
D) water 
E) ice

Question 15

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 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 16

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 these 
A) reservoir 
B) exchange pool 
C) biotic community 
D) source 
E) none of these

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 the primary source of carbon for aquatic algae?

Accepted Answer

A) calcium carbonate 
B) calcium chloride 
C) bicarbonate 
D) carbon dioxide 
E) carbon monoxide 
A) calcium carbonate 
B) calcium chloride 
C) bicarbonate 
D) carbon dioxide 
E) carbon monoxide

Question 19

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

Question 20

When energy flows from one trophic level to another only a small amount is actually used.Which of the following uses of energy by an organism allows for the least amount of transfer to a different trophic level?

Accepted Answer

A) cellular respiration 
B) growth 
C) death 
D) excretion 
E) reproduction 
A) cellular respiration 
B) growth 
C) death 
D) excretion 
E) reproduction

Exam 24: Global Ecology and Human Interferences

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

How does phosphate enter the soil?

To say that something is a producer is to give information regarding its niche in an ecosystem.

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

What is the advantage of constructing an ecological pyramid based on biomass?

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

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

Most ecosystems contain quaternary consumers.

List and explain the six steps in the hydrological cycle.

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

What is the reservoir for the water cycle?

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.

What kind of an organism is an earthworm?

Which of the following biogeochemical cycles is a sedimentary cycle?

Which of the following defines an ecosystem?

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

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

What is the primary source of carbon for aquatic algae?

What is the exchange pool for the carbon cycle?

When energy flows from one trophic level to another only a small amount is actually used.Which of the following uses of energy by an organism allows for the least amount of transfer to a different trophic level?

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