21) What role a wolf playing when it eats a : 1381009

21) What role a wolf playing when it eats a : 1381009.

 

 

21) What role is a wolf playing when it eats a rabbit that eats grass on a prairie in Wisconsin?

A) producer

B) primary consumer

C) secondary consumer

D) tertiary consumer

E) detritivore

 

22) Decomposer fungi are examples of a:

A) producer.

B) primary consumer.

C) secondary consumer.

D) tertiary consumer.

E) detritivore.

 

23) A dung beetle is an example of a:

A) producer.

B) primary consumer.

C) secondary consumer.

D) tertiary consumer.

E) detritivore.

 

24) As a general rule, for each jump up in trophic level, about how much does the available energy drop?

A) 10 percent

B) 30 percent

C) 50 percent

D) 90 percent

E) practically 100 percent

 

25) Phytoplankton are:

A) producers.

B) primary consumers.

C) secondary consumers.

D) tertiary consumers.

E) detritivores.

26) Net primary production is:

A) the amount of material a plant accumulates as a result of photosynthesis.

B) the net energy received by plants after subtracting what is turned into plant material.

C) the total energy received by plants from sunlight.

D) the total energy received by plants from sunlight in usable wavelengths.

E) only the energy received by plants that is converted into protein.

 

27) Which of the following would produce an ecosystem with a small number of trophic levels?

A) an ecosystem with short growing seasons

B) coldwater ocean ecosystems

C) an ecosystem in which insects are absent

D) an ecosystem small in size and biomass

 

28) The Venus flytrap is a photosynthetic plant that can trap and eat small insects. The Venus flytrap is a:

A) secondary consumer.

B) producer.

C) tertiary consumer.

D) both a producer and secondary consumer.

E) both a producer and tertiary consumer.

 

29) Humans function primarily at which trophic levels?

A) producers; primary consumers

B) all trophic levels

C) secondary consumers; tertiary consumers

D) primary consumers; secondary consumers

 

30) The lowest layer of the atmosphere, from sea level to about 7.4 miles, is the:

A) troposphere.

B) stratosphere.

C) ozone layer.

D) ionosphere.

 

21) What role a wolf playing when it eats a : 1381009

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