Fungi are simple hetrotrophic eukaryotes. They cannot prepare their own food. They show absorptive mode of nutrition. Some of them are parasites . Parasitic fungi obtain their food from other living organisms. Smut and rust are examples of parasitic fungi. The other type is saprotrophic fungi. They obtain their food from dead animals, plants, their wastes and decomposing materials. They secrete and pour out many digestive enzymes on dead bodies which convert dead organic materials into simpler substances that are absorbed by the fungus. Mushrooms and rhizopus are the examples of saprotrophic fungi.