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12.Ecosystem
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A food web
A
Increases variety of food at each trophic level
B
Delicately balances the inter relations amongst organisms
C
Decreases variety of food but increases quantity of food at each trophic level
D
Increases variety as well as quantity of food at each trophic level
Solution
A food web increases variety as well as quantity of food at each trophic level.
Standard 12
Biology
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