Examlex
The ____ is largely protected from pathogens because it is acidic.
Soviet Union
A socialist state on the Eurasian continent that existed from 1922 to 1991, formally known as the Union of Soviet Socialist Republics (USSR), and was a world superpower alongside the United States.
Afghanistan
Afghanistan is a landlocked country located at the crossroads of Central and South Asia, known for its historic significance and contemporary geopolitical importance.
Defensive Alliance
An agreement between nations to provide mutual support in case one of them is attacked by another country.
NATO
The North Atlantic Treaty Organization, a military alliance established in 1949 between North American and European countries to provide collective security against aggression.
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Q79: The hormone ADH causes the reabsorption of