Question

The materials which are locked up in dead complex organic substance are made available to plants in the form of simple inorganic substances by the .......

Answer 1

Decomposers: These are also called as Microconsumers or saprotrophs( Sapros= rotten; trophos= feeder) or reducers. This breakdown the complex organic substance of dead plants and animals to release most of the inorganic substances back into the environment for their reuse by the producers. The decomposers secrete digestive enzymes to digest the organic compounds externally. Examples of decomposers are bacteria and fungi.

So, the correct answer is 'Decomposers'.