mushroom

Fungi are small, usually microscopic, eukaryotic organisms,
filamentous (clear), branched, produce spores, do not have chlorophyll, and have cell walls containing chitin, cellulose or both. Most of the 100,000 known species of fungi are highly saprophytic,
live on dead organic matter, which helps weathering.

Some of them approximately 50 species, causing disease in humans, and approx that much causes disease in animals, most of it in the form of insignificant disease of the skin or limbs. However,
More than 8,000 species of fungi can cause disease in plants. All
Plants are attacked by several types of fungi, and each type of parasite can
attack one or many types of plants.