The fungi that consumes dead and decayed organic matter directly as food are known by which of the following options?


 

Concept: The majority of fungi are saprotrophs or decomposers. They feed on organic matter that has decomposed and return nutrients to the soil for plants to use. Fungi are the only decomposers capable of breaking down both wood and the cellulose found in plant cell walls, making them the primary forest decomposers.
Hence, option 2 is the correct answer.