The watershed divide of the Ural Mountains forms the natural land boundary between the continents of Europe and Asia. The range, averaging 3,000â4,000 ft. in height, extends about 1,640 miles north-south from the Arctic Ocean to the northern steppe of Kazakhstan.he watershed divide of the Ural Mountains forms the natural land boundary between the continents of Europe and Asia. The range, averaging 3,000â4,000 ft. in height, extends about 1,640 miles north-south from the Arctic Ocean to the northern steppe of Kazakhstan.
Yeasts. Yeasts are unicellular fungi. Examples: 1  Saccharomyces cerevisiae â bakerâs or brewerâs yeast. 2  Saccharomyces boulardii is a part of normal intestinal flora; available in pharmacies as probiotic, which can prevent antibiotic associated diarrhea.
There are also single-celled fungi that do not form hyphae, and some fungi have both hyphal and yeast forms. In common with some plant and animal species, more than 70 fungal species display bioluminescence. Unique features: Some species grow as unicellular yeasts that reproduce by budding or binary fission.