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Maslow's hierarchy of needs is often portrayed in the shape of a pyramid, with the largest, most fundamental needs at the bottom, and the need for self-actualization and transcendence at the top. However, Maslow himself never created a pyramid to represent the hierarchy of needs. [20] [3] [21] Maslow's hierarchy of needs represented as a ...
He defined a system component as "a unit of organization; a part with a function, i.e., a definite relation between part and whole." He identified the "nonfractionability of components in an organism" as the fundamental difference between living systems and "biological machines." He summarised his views in his book Life Itself. [19]
Because living systems involve net movement in terms of chemical movement or body movement, and lose energy in those movements through entropy, energy is required for a living system to exist. The main source of energy on Earth is the sun, but other sources of energy exist for life on Earth, such as hydrogen gas or methane, used in chemosynthesis.
It can also be termed as the zone of life on Earth, a closed system (apart from solar and cosmic radiation and heat from the interior of the Earth), and largely self-regulating. [95] Organisms exist in every part of the biosphere, including soil , hot springs , inside rocks at least 19 km (12 mi) deep underground, the deepest parts of the ocean ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 7 January 2025. American psychologist (1908–1970) Abraham Maslow Born April 1, 1908 (1908-04) Brooklyn, New York City, U.S. Died June 8, 1970 (1970-06-08) (aged 62) Menlo Park, California, U.S. Education City College of New York Cornell University University of Wisconsin Known for Maslow's hierarchy of ...
Basic needs such as air, water, food and protection from environmental dangers are necessary for an organism to live. In addition to basic needs , humans also have needs of a social or societal nature such as the human need for purpose , to socialize, to belong to a family or community or other group.
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The basic principle behind the organisation is the concept of emergence—the properties and functions found at a hierarchical level are not present and irrelevant at the lower levels. The biological organisation of life is a fundamental premise for numerous areas of scientific research , particularly in the medical sciences .