With reference to the food chains in ecosystems, which of th

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With reference to the food chains in ecosystems, which of the following kinds of organism is/are known as decomposer organism/organisms?

Select the correct answer using the codes given below.

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[Ecology and Environment 2011-16 New Without Errors,UPSC IAS Prelims 2013]

A 1 only

1 ही

B 2 and 3 only

2 और 3 ही

C 1 and 3 only

केवल 1 और 3

D 1, 2 and 3

1, 2 और 3

Most viruses need a living host organism-they are more like a parasite. Virus...

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