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Question

Which group of organisms is responsible for breaking down complex organic compounds in dead organic matter into simpler inorganic substances?

This question was previously asked in
UPTET 2026 Paper 2 Social Studies Question Paper (3-Jul-2026) (Shift 1)
The correct answer is

Decomposers

Decomposers are organisms such as bacteria and fungi that break down the complex organic compounds present in dead plants and animals.

Through this process, complex organic matter is converted into simpler inorganic substances, which are then released back into the soil, water, and air.

This recycling of nutrients by decomposers keeps essential elements such as carbon and nitrogen available for producers to use again, so decomposers are the group responsible for this breakdown.

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Important Questions from Ecology and Ecosystem

  1. Which one of the following is an example of ex situ conservation of biological resources?

  2. All eco-systems begin with energy input from-

  3. What is the transition zone between two ecosystems known as?

  4. Given below are two statements one is labelled as Assertion (A) and the other is labelled as Reason (R):

    Assertion (A): It is crucial to sustain Himalayan ecosystem

    Reason (R): Himalayan ecosystem is home to a number of indigenous tribes.

    In the light of the above two statements choose the correct answer from the options given below

  5. Among all recorded species in the world, India accounts for about

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