Question
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
Answer:
B
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Explanation:
Virus: Viruses are not considered organisms as they are acellular and require a host cell for reproduction. They do not play a direct role as decomposers.
Fungi: Fungi are decomposer organisms. They obtain nutrients by breaking down organic matter.
Bacteria: Bacteria are also decomposer organisms. They contribute to the decomposition process by breaking down complex organic compounds.