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The biosphere (from Ancient Greek βίος (bíos) ' life ' and σφαῖρα (sphaîra) ' sphere '), also called the ecosphere (from Ancient Greek οἶκος (oîkos) ' settlement, house ' and σφαῖρα (sphaîra) ' sphere '), is the worldwide sum of all ecosystems. It can also be termed the zone of life on the Earth.
Robert Rosen devoted a large part of his career, from 1958 [18] onwards, to developing a comprehensive theory of life as a self-organizing complex system, "closed to efficient causation". He defined a system component as "a unit of organization; a part with a function, i.e., a definite relation between part and whole."
Every resultant is either a sum or a difference of the co-operant forces; their sum, when their directions are the same – their difference, when their directions are contrary. Further, every resultant is clearly traceable in its components, because these are homogeneous and commensurable. It is otherwise with emergents, when, instead of ...
This list of mathematical series contains formulae for finite and infinite sums. It can be used in conjunction with other tools for evaluating sums. Here, is taken to have the value
Life is a quality that distinguishes matter that has biological processes, such as signaling and self-sustaining processes, from matter that does not. It is defined descriptively by the capacity for homeostasis, organisation, metabolism, growth, adaptation, response to stimuli, and reproduction.
Ecosystem respiration is the sum of respiration by all living organisms (plants, animals, and decomposers) in the ecosystem. [16] Net ecosystem production is the difference between gross primary production (GPP) and ecosystem respiration. [ 17 ]
A writer of hymns is known as a hymnist or hymnodist, and the process of singing a hymn is called hymnody; the same word is used for the collectivity of hymns belonging to a particular denomination or period (e.g. "nineteenth century Methodist hymnody" would mean the body of hymns written and/or used by Methodists in the nineteenth century).
Holism is the interdisciplinary idea that systems possess properties as wholes apart from the properties of their component parts. [1] [2] [3] The aphorism "The whole is greater than the sum of its parts", typically attributed to Aristotle, is often given as a summary of this proposal. [4]