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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 .
The first English use of the expression "meaning of life" appears in Thomas Carlyle's Sartor Resartus (1833–1834), book II chapter IX, "The Everlasting Yea". [1]Our Life is compassed round with Necessity; yet is the meaning of Life itself no other than Freedom, than Voluntary Force: thus have we a warfare; in the beginning, especially, a hard-fought battle.
Biology is the overall natural science that studies life, with the other life sciences as its sub-disciplines. Some life sciences focus on a specific type of organism. For example, zoology is the study of animals, while botany is the study of plants. Other life sciences focus on aspects common to all or many life forms, such as anatomy and ...
The concept of life expectancy may also be used in the context of manufactured objects, [11] though the related term [dubious – discuss] shelf life is commonly used for consumer products, and the terms "mean time to breakdown" and "mean time between failures" are used in engineering.
What Is Life? The Physical Aspect of the Living Cell is a 1944 science book written for the lay reader by physicist Erwin Schrödinger . The book was based on a course of public lectures delivered by Schrödinger in February 1943, under the auspices of the Dublin Institute for Advanced Studies , where he was Director of Theoretical Physics, at ...
Wikipedia [c] is a free-content online encyclopedia written and maintained by a community of volunteers, known as Wikipedians, through open collaboration and the wiki software MediaWiki.
The right to life is the belief that a human (or other animal) has the right to live and, in particular, should not be killed by another entity. The concept of a right to life arises in debates on issues including: capital punishment, with some people seeing it as immoral; abortion, with some considering the killing of a human embryo or fetus immoral; euthanasia, in which the decision to end ...
The Psychopathology of Everyday Life. Everyday life is a key concept in cultural studies and is a specialized subject in the field of sociology.Some argue that, motivated by capitalism and industrialism's degrading effects on human existence and perception, writers and artists of the 19th century turned more towards self-reflection and the portrayal of everyday life represented in their ...