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 is located in central Russia a bit west and south of the middle of the country. It is the largest freshwater lake in the world by volume and contains one fifth of â¦ all the world's fresh water. One of the only entirely fresh water seal populations in the world calls it home. This remarkable place was hardly known until the late 1800's.