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What percentage of man's chromosomes are found in a single sperm cell?
River Valleys
Geographical areas formed by the land surrounding a river, often characterized by fertile soil and significant for early human civilizations.
Hydraulic Theory
A theory that suggests the control and management of water resources played a crucial role in the development of early civilizations.
Occupation Site
A location where evidence of past human activity is found, indicating the presence of work, living, or ceremonial spaces.
Hydraulic Theory
A theory suggesting that the development of states in ancient civilizations was closely related to the control of irrigated farming over arid lands.
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