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2016-03-03T10:52:57+05:30

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characterstics of food chain
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2016-03-03T15:03:11+05:30

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A) always unidirectional
b) undergoes 10% law
c) greater number of producers
d) position of an organism is fixed
e) consists of only 3 or 4 tropic levels
f) each tropic level is dependent on each other for food and energy . 
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