Select all of the reasons why fungi are important to humans and to ecosystems. Solution Answer: Fungi are heterotrophs, which play role in ecosystem and few fungi are important for human society in medicine. Most of the antibiotics used in the recent days against bacterial infections are isolated from the fungi. Fungal species of pencillium is extensively cultivated in the laboratory to prepare isolate new antibiotics. Chinese caterpillar fungus, is a fungus which is use to control the insect pests of crops (Example of insects : Spittlebugs,citrus rust mitesColorado potato beetles, leaf hoppers). Mushrooms are a group of fungi, which are edible and rich in the protein value. Fungi in association with higher plants such as the angiosperms and gymnosperms are known as the mycorrhizal roots. In this association, fungi gets the moisture from the higher plants, whereas the plants get Nitrogen and other nutrients from the fungi. The dead organic matter present in the soil is recycled by the fungi along with the bacteria, which plays a role in decomposition of the toxic waste materials ..