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What Is the Main Reason for Using Food Webs Instead

Question 7

Multiple Choice

What is the main reason for using food webs instead of food chains in analyzing ecosystems?
I. Most organisms eat more than one type of food.
II. Most organisms feed at several trophic levels.
III. The decomposition cycle needs to be shown.


A) only I
B) only II
C) only III
D) only I and II
E) I, II, and III

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