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.

1. 1 only
2. 2 and 3 only
3. 1 and 3 only
4. 1, 2 and 3

Explanation

Fungi and Bacteria are correct

• Decomposers are organisms that break down dead organic material and recycle nutrients back into the ecosystem. They play a crucial role in maintaining the balance of ecosystems by decomposing complex organic substances into simpler compounds.
• Virus: Viruses are not considered decomposers. They are non-living outside a host and do not directly break down organic matter.
• Fungi: They break down organic material such as dead plants, animals, and waste products, converting them into simpler substances.
• Bacteria: They decompose dead organisms and waste products into simpler inorganic compounds.

Answer: (b) 2 and 3 only; Difficulty Level: Easy