Fungi are any of a group of spore-producing organisms feeding on organic matter, including molds, yeast, mushrooms, and toadstools.
Roles of fungi: decomposers, parasites, mutualists
Plant cell walls are made of cellulose.
Fungi cell walls are made of chitin.
Fungi are closely related to animals than plants.
Fungi are absorptive chemoheterotrophs meaning they digest food first using digestive enzymes and then they absorb the digested food.