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With reference to the food chains in ecosystems, which of the following kinds of organism is/are

With reference to the food chains in ecosystems, which of the following kinds of organism is/are
known as decomposer organism/organisms?
1.Virus
2.Fungi
3.Bacteria
Select the correct answer using the codes given below.

(a)

1 only

(b)

2 and 3 only

(c)

1 and 3 only

(d)

1, 2 and 3

Explanation

Most viruses need a living host organism-they are more like a parasite. Viruses reproduce by sticking their DNA into living cells and their DNA “takes over” the living cell and uses the living cells’ tools to replicate the virus’ DNA and make more viruses. Bacteria that are used in decomposition need the dead animals’ flesh for food