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.
The Topic: Polar Regions Easier-The polar regions are the icy areas around the North and South Pole. The Arctic and Antarctic are in the polar regions. Polar bears, penguins, seals, whales, and walrus are a few of the wildlife that live in these very cold regions.Harder-The cold polar regions are found on the far south and north ends of the globe.olar bears, penguins, seals, whales, and walrus are a few of the wildlife that live in these very cold regions. Harder-The cold polar regions are found on the far south and north ends of the globe.