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 in Siberia, Russia (Asia), is the world's deepest freshwater lake at 1,638 metres deep. It is 636 km long and is theworld's sixth largest lake and 1,181 metres of â¦it is below sealevel. It contains 20% of the world's fresh water which is so clearthat divers suffer from vertigo.