QUESTION

Medium

Environment & Ecology

Prelims 2013

With reference to the food chains in ecosystems, which of the following kinds of an organism is/are known as decomposer organism/organisms?

  1. Virus
  2. Fungi
  3. Bacteria

Select the correct answer using the codes given below.

Select an option to attempt

Explanation

Fungi and Bacteria are decomposers.

  • They breakdown organic matter into simple inorganic substances.

  • Virus represents dormant life. They are metabolically inactive as long as they are outside a host body.

  • They are not decomposers. They invade host cells and use their nucleus (DNA machinery) to carry out their life processes.

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