The whole system of advancements from beginning to end is called the technology tree, or simply the Tech tree ; this concept has been adopted in many other strategy games.

With the publication of Darwin's theory of evolution in 1859, the concept of a " natural system " of taxonomy gained a theoretical basis, and the idea was born that groups used in a system of classification should represent branches on the evolutionary tree of life.

Mind maps are based on radial hierarchies and tree structures denoting relationships with a central governing concept, whereas concept maps are based on connections between concepts in more diverse patterns.

The concept of a tree of life has been used in science ( see tree of life ( biology )), religion, philosophy, mythology, and other areas.

The concept can be broken down still further, with the Manifestation as the roots and trunk of the tree and his followers as the branches and leaves.

In Serer religion, tree of life as a religious concept form the basis of Serer cosmogony.

Like the view system in most GUIs, NeWS included the concept of a tree of embedded views along which events were passed.

The Maya civilization believed, Yaaxché, a concept of the central world tree is often depicted as a Ceiba trunk, which connects the planes of the Underworld ( Xibalba ), the terrestrial realm and the skies.

Over a century later, evolutionary biologists still use tree diagrams to depict evolution because such diagrams effectively convey the concept that speciation occurs through the adaptive and random splitting of lineages.

The concept of tree decompositions and treewidth was originally introduced by.

This first tree sit lasted less than a day — Jakubal came down in the evening to look over the remains of the forest that had been cut down around him that day, and was arrested by a hidden Forest Service officer — but the tree-sitting concept was deemed sound by Earth First!

Huber and Jakubal, in the company of Mike Roselle, brought the concept to the June 14 Washington EF Rendezvous ; on June 23, a convoy of activists arrived at Willamette National Forest, and set up tree platforms in " Squaw / Three timbersale ", a location the group thought was threatened with imminent destruction.

The Köppen climate classification system was strongly influenced by effects of temperature and precipitation upon tree growth, and his oversimplified assumptions resulted in a tropical savanna classification concept which resulted in it being considered as a " climatic climax " formation.

Johnson claims to be the originator of the visual directory tree concept that was used first in an Epson backup product created by ESI.

Anderson also did research on the magnolia tree and discovered a concept that eating the tree's bark helped cure cancer.

He established 1914 as the date of Christ's invisible return, asserted that Christ died on a tree rather than a cross, formulated the current Witness concept of Armageddon as God's war on the wicked, and reinforced the belief that the start of Christ's millennial reign was imminent.

A tree filled with snakes, a carousel, antique cars, koi pond, children's playground ( called Kiddie Kingdom ,) petting zoo ( named Happy Feeling ) and a restaurant named Gingerbread Fancy ( now Granny's Country Kitchen ) were also borrowed from the floral park concept to create a section of The Enchanted Forest.

One of the central recurring images found in Anger's work is the concept of flames and light ; in Fireworks there are various examples of this, including a burning Christmas tree, and it subsequently appears in many of his other works as well.

:" The concept behind the word ‘ macerals ’ is that the complex of biological units represented by a forest tree which crashed into a watery swamp and there partly decomposed and was macerated in the process of coal formation, did not in that process become uniform throughout but still retains delimited regions optically differing under the microscope, which may or may not have different chemical formulae and properties.

Along with grassroots concerns about preservation of forests and trees came a natural pride in a part of the local flora, and the concept of a state tree was born.

The concept of an Urheimat only applies to populations speaking a proto-language defined by the tree model.

They recognized that slavery was a moral issue and not merely an economic interest, and that to recognize it explicitly in their Constitution would be in explosive contradiction to the concept of sovereignty they had set forth in the Declaration of 1776 that `` all men are created equal, that they are endowed by their Creator with certain unalienable rights, that among them are life, liberty and the pursuit of happiness.

In seeking for such meaning and purpose, Albert Schweitzer seized upon the concept of the `` sacredness of life ''.

In philosophy, religion, mythology, and fiction, the afterlife ( also referred to as life after death, or Hereafter ) is the concept of a realm, or the realm itself ( whether physical or transcendental ), in which an essential part of an individual's identity or consciousness continues to reside after the death of the body in the individual's lifetime.

According to some interpretations, the concept of ahimsa as expounded in the scriptures and law books is not meant to imply pacifism ; war is seen as a normal part of life and the natural duty of the warriors.

The biography of Anthony's life by Athanasius of Alexandria helped to spread the concept of monasticism, particularly in Western Europe through Latin translations.

In doing so, Paul extends Habakkuk's original concept of righteous living at the present time into a future life.

Breatharianism is a related concept, in which believers claim food and possibly water are not necessary, and that humans can be sustained solely by prana ( the vital life force in Hinduism ), or, according to some, by the energy in sunlight ( according to Ayurveda, sunlight is one of the main sources of prana ).

Hinduism's view on premarital sex is rooted in its concept of the stages of life.

Extending the logic of these measures, Green adumbrated a positive and collectivist definition of liberty, a concept of " public freedom " that justified legislative oversight of economic life, especially land ownership and use.

Sorrow ( released in December 1968 ) by British group the Pretty Things is generally considered to be among the first creatively successful rock concept albums-in that each song is part of an overarching unified concept – the life story of the main character, Sebastian Sorrow.

In 2004 the British hip hop group The Streets released A Grand Don't Come for Free, a concept album charting a period of the protagonists life in which he meets a girl, starts a relationship with her and then breaks up with her after finding out she has been cheating on him.

An important early film to move beyond the concept of the scenic was In the Land of the Head Hunters ( 1914 ), which embraced primitivism and exoticism in a staged story presented as truthful re-enactments of the life of Native Americans.

However, this overlooks those parts of scripture which provide for the doctrine of the " Two Swords " and for the medieval Roman Catholic concept of the powers of kings to protect the Christian Constitution of states, to defend and extend the boundaries of Christendom by lawful means only, to protect and defend the innocent, the weak, the poor and the vulnerable, and to protect the church and the papacy with the king's own life, if necessary.

The Primrose Path starts with a large painting illustrating the concept, which dissolves into a replica of the same scene with actors posed, and then they come to life, as these would soon become popular aspects of film making.

This wider concept of Islamic jurisprudence is the source of a range of laws in different topics that govern the lives of the Muslims in all facets of everyday life.

The patriarchal concept of masculinity is also seen as harmful to men by narrowing their life choices, limiting their sexuality, and blocking full emotional connections with women and other men.

The Gaia hypothesis deals with the concept of homeostasis, and claims the resident life forms of a host planet coupled with their environment have acted and act as a single, self-regulating system.

This concept is not limited to magical or overtly religious behavior, but includes also one's day-to-day life and conduct.

The concept requires that the insured have a " stake " in the loss or damage to the life or property insured.

Objectivism is a system of philosophy created by philosopher and novelist Ayn Rand ( 1905 – 1982 ) that holds: reality exists independent of consciousness ; human beings gain knowledge rationally from perception through the process of concept formation and inductive and deductive logic ; the moral purpose of one's life is the pursuit of one's own happiness or rational self-interest.

The samurai could equate the disregard for his own life in the heat of battle, which was considered necessary for victory in individual combat, to the Buddhist concept of the illusory nature of the distinction between life and death.

The concept of a united family that lives and progresses forever is at the core of Latter-day Saint doctrine, and Mormons place a high importance on family life.