Submit. · just now. Report Abuse. cell wall is the characteristic of all fungus... The fungi are heterotrophic organisms possessing a chitinous cell wall, with most species growing as multicellular filaments called hyphae forming a mycelium; some species also grow as single cells.CHITIN Chitin is one of many naturally occurring polymers.It is one of the most abundant natural materials in the world.ubmit. · just now. Report Abuse. cell wall is the characteristic of all fungus... The fungi are heterotrophic organisms possessing a chitinous cell wall, with most species growing as multicellular filaments called hyphae forming a mycelium; some species also grow as single cells.