Main Difference – Mold vs Fungus Mold and fungus are two types of organisms that belong to the kingdom Fungi. The main difference between mold and fungus is that mold is a multicellular, filamentous fungi whereas fungus is a unicellular or multicellular organism with a chitin cell wall. Fungi include molds, mushrooms, and yeast. A … Continue reading Difference Between Mold and Fungus