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  2. Integrative level - Wikipedia

    en.wikipedia.org/wiki/Integrative_level

    The main levels usually acknowledged are those of matter, life, mind, and society.These are called strata in philosopher Nicolai Hartmann's ontology.Levels can be further analyzed into more specific layers, such as those of particles, atoms, molecules, and rocks forming the material stratum, or those of cells, organisms, populations, and ecosystems forming the life stratum.

  3. Biological organisation - Wikipedia

    en.wikipedia.org/wiki/Biological_organisation

    For example, a molecule can be viewed as a grouping of elements, and an atom can be further divided into subatomic particles (these levels are outside the scope of biological organisation). Each level can also be broken down into its own hierarchy, and specific types of these biological objects can have their own hierarchical scheme.

  4. Biological system - Wikipedia

    en.wikipedia.org/wiki/Biological_system

    Biological organization spans several scales and are determined based different structures depending on what the system is. [1] Examples of biological systems at the macro scale are populations of organisms. On the organ and tissue scale in mammals and other animals, examples include the circulatory system, the respiratory system, and the ...

  5. List of citizen science projects - Wikipedia

    en.wikipedia.org/wiki/List_of_citizen_science...

    Other projects like AgeGuess [8] focus on the senior demographics and enable the elderly to upload photos of themselves so the public can guess different ages. Lists of citizen science projects may change. For example, the Old Weather project website indicates that as of January 10, 2015, 51% of the logs were completed. [9]

  6. Category:Levels of organization (Biology) - Wikipedia

    en.wikipedia.org/wiki/Category:Levels_of...

    In other projects Wikidata item; Appearance. move to sidebar hide. Help. Pages in category "Levels of organization (Biology)" The following 2 pages are in this ...

  7. Cellular organizational structure - Wikipedia

    en.wikipedia.org/wiki/Cellular_organizational...

    A non-biological entity with a cellular organizational structure (also known as a cellular organization, cellular system, nodal organization, nodal structure, et cetera) is set up in such a way that it mimics how natural systems within biology work, with individual 'cells' or 'nodes' working somewhat independently to establish goals and tasks ...

  8. Class (biology) - Wikipedia

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

    Insofar as a general definition of a class is available, it has historically been conceived as embracing taxa that combine a distinct grade of organization—i.e. a 'level of complexity', measured in terms of how differentiated their organ systems are into distinct regions or sub-organs—with a distinct type of construction, which is to say a ...

  9. Unit of selection - Wikipedia

    en.wikipedia.org/wiki/Unit_of_selection

    Two useful introductions to the fundamental theory underlying the unit of selection issue and debate, which also present examples of multi-level selection from the entire range of the biological hierarchy (typically with entities at level N-1 competing for increased representation, i.e., higher frequency, at the immediately higher level N, e.g., organisms in populations or cell lineages in ...