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  2. Biological network - Wikipedia

    en.wikipedia.org/wiki/Biological_network

    A biological network is a method of representing systems as complex sets of binary interactions or relations between various biological entities. [ 1 ] In general, networks or graphs are used to capture relationships between entities or objects. [ 1 ]

  3. Introduction to evolution - Wikipedia

    en.wikipedia.org/wiki/Introduction_to_evolution

    In biology, evolution is the process of change in all forms of life over generations, and evolutionary biology is the study of how evolution occurs. Biological populations evolve through genetic changes that correspond to changes in the organisms ' observable traits. Genetic changes include mutations, which are caused by damage or replication ...

  4. 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 ...

  5. Domain (biology) - Wikipedia

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

    Intermediate minor rankings are not shown. In biological taxonomy, a domain (/ dəˈmeɪn / or / doʊˈmeɪn /) (Latin: regio[1]), also dominion, [2] superkingdom, realm, or empire, is the highest taxonomic rank of all organisms taken together. It was introduced in the three-domain system of taxonomy devised by Carl Woese, Otto Kandler and Mark ...

  6. Phylogenetic tree - Wikipedia

    en.wikipedia.org/wiki/Phylogenetic_tree

    A phylogenetic tree, phylogeny or evolutionary tree is a graphical representation which shows the evolutionary history between a set of species or taxa during a specific time. [1][2] In other words, it is a branching diagram or a tree showing the evolutionary relationships among various biological species or other entities based upon ...

  7. Biological organisation - Wikipedia

    en.wikipedia.org/wiki/Biological_organisation

    Biological organisation is the organisation of complex biological structures and systems that define life using a reductionistic approach. [1] The traditional hierarchy, as detailed below, extends from atoms to biospheres. The higher levels of this scheme are often referred to as an ecological organisation concept, or as the field, hierarchical ...

  8. Evolutionary biology - Wikipedia

    en.wikipedia.org/wiki/Evolutionary_biology

    Category. v. t. e. Darwin's finches. Evolutionary biology is the subfield of biology that studies the evolutionary processes (natural selection, common descent, speciation) that produced the diversity of life on Earth. It is also defined as the study of the history of life forms on Earth.

  9. What Is Physiology? - WebMD

    www.webmd.com/a-to-z-guides/what-is-physiology

    Physiology is the study of how the human body works. It describes the chemistry and physics behind basic body functions, from how molecules behave in cells to how systems of organs work together ...