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In internal respiration, the PCO2 in the blood is ____________________, and the PCO2 in the tissues is ____________________.
New Immigrants
Refers to the wave of immigrants who came to the United States from Southern and Eastern Europe during the late 19th and early 20th centuries.
American Society
The aggregate of individuals and institutions within the United States, characterized by unique social, cultural, and political elements.
Middle East
A region primarily located in Western Asia and partially in North Africa, known for its strategic geopolitical importance and rich history of civilization, culture, and conflict.
Reagan Administration's Policies
A set of domestic and foreign strategies implemented during the presidency of Ronald Reagan, focusing on economic reform, military buildup, and the reduction of government regulation.
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