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  2. Life - Wikipedia

    en.wikipedia.org/wiki/Life

    The definition of life has long been a challenge for scientists and philosophers. [ 2 ] [ 3 ] [ 4 ] This is partially because life is a process, not a substance. [ 5 ] [ 6 ] [ 7 ] This is complicated by a lack of knowledge of the characteristics of living entities, if any, that may have developed outside Earth.

  3. Biology - Wikipedia

    en.wikipedia.org/wiki/Biology

    Biologists can study life at multiple levels of organization, [1] from the molecular biology of a cell to the anatomy and physiology of plants and animals, and the evolution of populations. [1] [6] Hence, there are multiple subdisciplines within biology, each defined by the nature of their research questions and the tools that they use.

  4. 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 ...

  5. EXCLUSIVE: See a preview of 'Our Living World', Netflix ... - AOL

    www.aol.com/news/exclusive-see-preview-living...

    Netflix's "Our Living World" is a new documentary that shows, more than anything, our changing world, and the effect climate change is already having on living beings.. TODAY.com has an exclusive ...

  6. Nature documentary - Wikipedia

    en.wikipedia.org/wiki/Nature_documentary

    A nature documentary or wildlife documentary is a genre of documentary film or series about animals, plants, or other non-human living creatures. Nature documentaries usually concentrate on video taken in the subject's natural habitat , but often including footage of trained and captive animals, too.

  7. Life (2009 TV series) - Wikipedia

    en.wikipedia.org/wiki/Life_(2009_TV_series)

    Life is a British nature documentary series created and produced as a co-production between the BBC Natural History Unit, Discovery Channel and Skai tv in association with The Open University. It was first broadcast as part of the BBC's Darwin Season [ 1 ] on BBC One and BBC HD from October to December 2009 and was written and narrated by David ...

  8. Natural science - Wikipedia

    en.wikipedia.org/wiki/Natural_science

    Natural science can be divided into two main branches: life science and physical science. Life science is alternatively known as biology, and physical science is subdivided into branches: physics, chemistry, earth science, and astronomy. These branches of natural science may be further divided into more specialized branches (also known as fields).

  9. In Real Life: Nature’s Reboot - AOL

    www.aol.com/news/real-life-nature-reboot...

    Some conservationists are now asking: Is nature’s 3.6 billion-year-old code of life in need of a reboot?