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The study of the molecular and cellular components that comprise the immune system, including their function and interaction, is the central science of immunology. The immune system has been divided into a more primitive innate immune system and, in vertebrates, an acquired or adaptive immune system. The latter is further divided into humoral (or antibody) and cell-mediated components.

What is the basic, primitive part of the immune system known as?
Answer: innate immune system
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Traditionally, Switzerland avoids alliances that might entail military, political, or direct economic action and has been neutral since the end of its expansion in 1515. Its policy of neutrality was internationally recognised at the Congress of Vienna in 1815. Only in 2002 did Switzerland become a full member of the United Nations and it was the first state to join it by referendum. Switzerland maintains diplomatic relations with almost all countries and historically has served as an intermediary between other states. Switzerland is not a member of the European Union; the Swiss people have consistently rejected membership since the early 1990s. However, Switzerland does participate in the Schengen Area.

How long has Switzerland traditionally been neutral?
Answer: since the end of its expansion in 1515
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The word Ottoman is a historical anglicisation of the name of Osman I, the founder of the Empire and of the ruling House of Osman (also known as the Ottoman dynasty). Osman's name in turn was derived from the Persian form of the name Uthman of ultimately Arabic origin. In Ottoman Turkish, the empire was referred to as Devlet-i Aliyye-yi Osmaniyye ( ), (literally "The Supreme State of the Ottomans") or alternatively Osmanl Devleti ( ).[dn 5] In Modern Turkish, it is known as Osmanl Imparatorlugu ("Ottoman Empire") or Osmanl Devleti ("The Ottoman State").

What was another name for the Ottoman Dynasty?
Answer:
House of Osman