An obligate parasite, or holoparasite, is a parasitic organism that cannot complete its life-cycle without exploiting a suitable host.
Part of the Andes mountain range, Aconcagua is the second highest of the Seven Summits, behind only Mount Everest in Asia. At 22,837 feet (6,961 meters), not only is it the highest mountain in South America, it is the tallest peak in all of the Americas as well as the Southern and Western Hemispheres.
Mount Everest the highest peak in the world is situated at the edge of Tibetan Plateau on the border between Nepal and China. Mt. Everest (8,848m.) is famous as Sagarmatha in Nepal and Chomolungma in Tibet. It is also called Third Pole.