Examlex
Which organ system keeps blood constantly supplied with oxygen, removes carbon dioxide, and contains many air tubes?
Political Power
The ability or capacity to influence or control the behavior of people or the course of events, often exercised by government officials or entities.
Pig Breeding
The practice of selectively mating pigs to improve desirable traits such as size, growth rate, and meat quality.
Infrastructure
In anthropological theory, the economic foundation of a society, including its subsistence practices and the tools and other material equipment used to make a living.
Superstructure
In Marxist theory, the social, political, and ideological systems and institutions that derive from and support the economic base of a society.
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