A fungus (/ËfÊÅÉ¡És/; plural: fungi or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and molds, as well as the more familiar mushrooms. These organisms are classified as a kingdom, Fungi, which is separate from the other eukaryotic life kingdoms of plants and animals. A characteristic that places fungi in a different kingdom from plants, bacteria and some protists, is chitin in their cell walls.
The 11-year cycle of the number of sunspots was first demonstrated by Heinrich Schwabe (1789-1875) in 1843. There have been several periods during which sunspots were rare or absent, most notably the Maunder minimum (1645-1715), and less markedly the Dalton minimum (1795-1820) (Fig 2.8 in the book).
Sunspots appear as dark areas on the sun that are cooler then the  surrounding areas. They are caused by increased magnetic activity.  Sunspot activity is describing increas â¦ ed sunspots on the suns  surface.unspots are formed because regions of the Sun's surface getting cooler, this is caused by magnetic field loops stopping the convection that brings heat to the solar surface.