The decomposers comprising microorganisms like Bacteria and ______.
Decomposers: These are also called as microconsumers or saprotrophs( Sapros= rotten; trophos= feeder) or reducers. These 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 'Bacteria and fungi'.