The Renaissance began in Europe.<span />
The Brezhnev Doctrine asserted that the Soviet Union would start becoming an important and interfering force in the Eastern part of Europe for one reason only - to preserve communist rule. A part this doctrine was also that they would want to obtain a disarmament agreement between themselves and NATO.
Answer:
The activities that most demonstrated Americans' belief in Manifest Destiny occurred during the 19th century, while thousands of settlers moved west and displaced thousands of natives.
Explanation:
When oxygen is not available or is not efficient for normal respiration which uses O2 (aerobic respiration), the organism turns to mode of anaerobic respiration/fermentation that does not require O2 and is less efficient to provide energy to the organism but it still produces. That is GLUCOSE [no oxygen] —> ATP + lactic acid
A caste system was created to describe the various mixes and to assign them a different social level.