Fungi are multicellular organisms that have a more complex structure compared to bacteria. They have a cell wall made of chitin, a plasma membrane, cytoplasm, and genetic material in the form of DNA. Fungi also have a mycelium, which is a mass of branching, thread-like structures called hyphae that make up the fungal body. Hyphae absorb nutrients from their surroundings, and this is how fungi obtain their food. Some fungi also produce spores called spores, which can form into new individuals, and reproductive structures called fruiting bodies that produce spores.