Question

Bacteria plays important role in an ecosystem because:

• A. They act as producers
• B. They act as decomposers
• C. They act as consumers
• D. They act as omnivores

Answer 1

The correct option is B They act as decomposers

Microorganisms like bacteria and fungi, act as decomposers as they break down the dead and decaying organisms into simpler nutrients that mix with the soil. These nutrients are gradually absorbed by plants during photosynthesis.
Decomposers are considered to be of great importance as in their absence, the earth would be filled with dead bodies.