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How is the net primary productivity of an ecosystem calculated?
Eating
The act of consuming food in order to provide nutritional support to the body.
Abraham Maslow
A renowned American psychologist who developed the hierarchy of needs theory, which suggests psychological well-being is based on meeting basic human needs.
Hierarchy
Hierarchy is a system or organization in which people or groups are ranked one above the other according to status or authority.
Needs
Fundamental requirements that individuals must fulfill to achieve basic physiological and psychological well-being.
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