Protozoa (kingdom Protoctista) A phylum (division) of eukaryotic, single-celled micro-organisms which show a wide variety of forms. The phylum includes some plant-like forms and animal species that are free-living, commensal, mutualistic, and parasitic, and some important disease-causing organisms.
Lake Baikal in Siberia, Russia (Asia), is the world's deepest fresh water lake at 1,638 metres deep. It is 636 km long and is the world's sixth largest lake and 1,181 metr â¦ es of it is below sea level. It contains 20% of the world's fresh water which is so clear that divers suffer from vertigo.
Lake Baikal, at the start of the Angara River, Irkutsk, Siberia, Russia, 1980s. Baikal is the largest freshwater lake in Asia and the deepest lake in the world.Getty Images. This page includes three lists of the world's largest lakes. They are ranked by surface area, volume, and depth.eepest Lakes in the World. Source: Wikipedia. * Some consider the Caspian Sea not to be a lake but it is surrounded by land and thus meets the generally accepted definition of a lake. ** Lake Baikal holds one-fifth of the world's freshwater.