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  2. Tree of life (biology) - Wikipedia

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

    In 2015, the third version of TimeTree was released, with 2,274 studies and 50,632 species, represented in a spiral tree of life, [29] free to download. In 2015, the first draft of the Open Tree of Life was published, in which information from nearly 500 previously published trees was combined into a single online database, free to browse and ...

  3. Biological system - Wikipedia

    en.wikipedia.org/wiki/Biological_system

    Systems Biology: An Overview by Mario Jardon: A review from the Science Creative Quarterly, 2005. Synthesis and Analysis of a Biological System, by Hiroyuki Kurata, 1999. It from bit and fit from bit. On the origin and impact of information in the average evolution.

  4. Directionality (molecular biology) - Wikipedia

    en.wikipedia.org/wiki/Directionality_(molecular...

    In the DNA segment shown, the 5′ to 3′ directions are down the left strand and up the right strand. The 5′-end (pronounced "five prime end") designates the end of the DNA or RNA strand that has the fifth carbon in the sugar-ring of the deoxyribose or ribose at its terminus.

  5. Botany - Wikipedia

    en.wikipedia.org/wiki/Botany

    Botany, also called plant science or phytology, is the branch of natural science and biology studying plants, especially their anatomy, taxonomy, and ecology. [1] A botanist, plant scientist or phytologist is a scientist who specialises in this field.

  6. List of unsolved problems in biology - Wikipedia

    en.wikipedia.org/wiki/List_of_unsolved_problems...

    Origin of life.Exactly how, where, and when did life on Earth originate? Which, if any, of the many hypotheses is correct? What were the metabolic pathways used by the earliest life forms?

  7. Biological organisation - Wikipedia

    en.wikipedia.org/wiki/Biological_organisation

    A population of bees shimmers in response to a predator. Biological organisation is the organisation of complex biological structures and systems that define life using a reductionistic approach. [1]

  8. Divergent evolution - Wikipedia

    en.wikipedia.org/wiki/Divergent_evolution

    Divergent evolution or divergent selection is the accumulation of differences between closely related populations within a species, sometimes leading to speciation. ...

  9. Outline of biology - Wikipedia

    en.wikipedia.org/wiki/Outline_of_biology

    Molecular biology – study of biology and biological functions at the molecular level, with some cross over from biochemistry. Structural biology – a branch of molecular biology, biochemistry, and biophysics concerned with the molecular structure of biological macromolecules. Health sciences and human biologybiology of humans.

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