Asexual reproduction creates more organisms "without fusion of two types of cells, mostly found in algae; fungi; and plants. Asexual reproduction occurs in several ways, such as budding, fission, or splitting from "parent" cells. Only few groups of animals reproduce asexually or unisexually (i.e., parthenogenesis)."[1]
There are various mechanisms by which a species that reproduces asexually can still have genetic diversity, such as plasmid transfer.