Which of the following statements is true of a food chain but not a food web?

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The overall average number of trophic levels found in a food chain is about seven.

  

Several species can be present in each trophic level of a food chain.

  

A food chain depicts a single species occupying each trophic level in a particular ecosystem.

  

Usable energy is lost as it is transferred through the food chain.

 

asked Jan 3, 2013 in Biology by anonymous
    

1 Answer

0 votes

 

A food chain depicts a single species occupying each trophic level in a particular ecosystem.

 

answered Jan 3, 2013 by anonymous



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