Question

What is the role of decomposers in the ecosystem?

Hint:

Without decomposers → ecosystem = “{garbage dump}”.

Answer 1

Step 1: Concept of Decomposers
Decomposers are organisms like bacteria and fungi that feed on dead and decaying plants and animals. They are the final link in the food chain.
Step 2: Roles in the Ecosystem
Decomposition of organic matter: They break down complex organic matter into simpler inorganic substances like carbon dioxide, water, and nutrients.
Recycling of nutrients: The nutrients released (nitrogen, phosphorus, etc.) are reused by plants, maintaining soil fertility.
Cleaning of environment: They prevent the accumulation of dead bodies and wastes in nature.
Energy flow: They release energy stored in dead matter back into the ecosystem.
Step 3: Examples
Fungi like Rhizopus, Mushrooms.
Bacteria like Pseudomonas, Bacillus.
Final Answer:
Decomposers recycle nutrients, clean the environment, and maintain the balance of the ecosystem by breaking down dead organic matter.