Multicellular fungi are made of thread-like structures called hyphae (singular hyphae) that form a mycelium. e.g. Saccharomyces cereviseae (bread yeast).
Others include Penicillium, Rhizopus, and edible mushroom
Economic Importance of Fungi
Beneficial Effects of Fungi
Some fungi are used as food e.g. mushrooms.
Some are decomposers which enhance decay to improve soil fertility – recycling of nutrients e.g., toadstools.