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An organism that can use energy and inorganic substances to produce all the organic material it requires is a(an) :


A) Producer and heterotroph
B) Heterotroph
C) Autotroph and producer
D) Autotroph
E) Producer

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

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figure 37.19 figure 37.19   -What did the scientists conclude from figure 37.19? A) Plants survived the heat best with virus-infected fungi B) Plants survived the heat best with virus-free fungi C) Plants survived the heat best without fungi D) Plants survived the heat best when infected by the virus E) Plants survived the heat best when not infected by the virus -What did the scientists conclude from figure 37.19?


A) Plants survived the heat best with virus-infected fungi
B) Plants survived the heat best with virus-free fungi
C) Plants survived the heat best without fungi
D) Plants survived the heat best when infected by the virus
E) Plants survived the heat best when not infected by the virus

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

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Decomposers:


A) Obtain nutrients from detritus
B) Return organic molecules to their inorganic form
C) Include bacteria
D) Include fungi
E) All are correct

F) D) and E)
G) All of the above

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If there are 10,000 calories of net primary productivity in a field,how much on average will be available to a secondary consumer?


A) 1000 calories
B) 100 calories
C) 10,000 calories
D) 10 calories
E) 1 calorie

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

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Raw sewage within a water ecosystem can cause fish kills because respiration by the microbes in the sewage reduces the concentration of oxygen within the water.

A) True
B) False

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The ecosystem that would most likely have a very high net primary productivity is a:


A) Desert
B) Tropical rain forest
C) Temperate forest
D) Boreal forest
E) Tundra

F) C) and E)
G) A) and E)

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