Question 1

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

Accepted Answer

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

Question 2

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.

Accepted Answer

A) True 
 B)False

Question 3

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

Accepted Answer

A)  Desert
B)  Tropical rain forest
C)  Temperate forest
D)  Boreal forest
E)  TundraF) A) and B)
G) D) and E)

Question 4

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

Accepted Answer

A)  1000 calories
B)  100 calories
C)  10,000 calories
D)  10 calories
E)  1 calorieF) D) and E)
G) None of the above

Question 5

Decomposers:

Accepted Answer

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

Question 6

figure 37.19 
-What did the scientists conclude from figure 37.19?

Accepted Answer

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 virusF) B) and C)
G) None of the above

Exam 37: Communities and Ecosystems

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

Correct Answer
verified

figure 37.19 -What did the scientists conclude from figure 37.19?

Correct Answer
verified

Decomposers:

Correct Answer
verified

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

Correct Answer
verified

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.

Correct Answer
verified

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

Correct Answer
verified

Exam 37: Communities and Ecosystems

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

Correct AnswerverifiedShow Answer

figure 37.19 -What did the scientists conclude from figure 37.19?

Correct AnswerverifiedShow Answer

Decomposers:

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified