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  2. Tree structure - Wikipedia

    en.wikipedia.org/wiki/Tree_structure

    A tree structure, tree diagram, or tree model is a way of representing the hierarchical nature of a structure in a graphical form. It is named a "tree structure" because the classic representation resembles a tree, although the chart is generally upside down compared to a biological tree, with the "stem" at the top and the "leaves" at the ...

  3. Phylogenetic tree - Wikipedia

    en.wikipedia.org/wiki/Phylogenetic_tree

    The idea of a tree of life arose from ancient notions of a ladder-like progression from lower into higher forms of life (such as in the Great Chain of Being).Early representations of "branching" phylogenetic trees include a "paleontological chart" showing the geological relationships among plants and animals in the book Elementary Geology, by Edward Hitchcock (first edition: 1840).

  4. Tree - Wikipedia

    en.wikipedia.org/wiki/Tree

    The crown is the spreading top of a tree including the branches and leaves, [29] while the uppermost layer in a forest, formed by the crowns of the trees, is known as the canopy. [30] A sapling is a young tree. [31] Many tall palms are herbaceous [32] monocots, which do not undergo secondary growth and never produce wood.

  5. Tree of life (biology) - Wikipedia

    en.wikipedia.org/wiki/Tree_of_life_(biology)

    Edward Hitchcock's fold-out paleontological chart in his 1840 Elementary Geology. Although tree-like diagrams have long been used to organise knowledge, and although branching diagrams known as claves ("keys") were omnipresent in eighteenth-century natural history, it appears that the earliest tree diagram of natural order was the 1801 "Arbre botanique" (Botanical Tree) of the French ...

  6. Cladogram - Wikipedia

    en.wikipedia.org/wiki/Cladogram

    Cladogram. A horizontal cladogram, with the root to the left. Two vertical cladograms, the root at the bottom. A cladogram (from Greek clados "branch" and gramma "character") is a diagram used in cladistics to show relations among organisms. A cladogram is not, however, an evolutionary tree because it does not show how ancestors are related to ...

  7. Figurative system of human knowledge - Wikipedia

    en.wikipedia.org/wiki/Figurative_system_of_human...

    The " figurative system of human knowledge " ( French: Système figuré des connaissances humaines ), sometimes known as the tree of Diderot and d'Alembert, was a tree developed to represent the structure of knowledge itself, produced for the Encyclopédie by Jean le Rond d'Alembert and Denis Diderot . The tree was a taxonomy of human knowledge ...

  8. Pedigree chart - Wikipedia

    en.wikipedia.org/wiki/Pedigree_chart

    Pedigree chart. A pedigree chart is a diagram that shows the occurrence and appearance of phenotypes [jargon] of a particular gene or organism and its ancestors from one generation to the next, [1] [2] [3] [unreliable source?] most commonly humans, show dogs, and race horses .

  9. Treemapping - Wikipedia

    en.wikipedia.org/wiki/Treemapping

    In information visualization and computing, treemapping is a method for displaying hierarchical data using nested figures, usually rectangles. Treemaps display hierarchical ( tree-structured) data as a set of nested rectangles. Each branch of the tree is given a rectangle, which is then tiled with smaller rectangles representing sub-branches.

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