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  2. 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.

  3. 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 ...

  4. Category talk:Levels of organization (Biology) - Wikipedia

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

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Pages for logged out editors learn more

  5. IMRAD - Wikipedia

    en.wikipedia.org/wiki/IMRAD

    Fig.1: Wineglass model for IMRaD structure. The above scheme shows how to line up the information in IMRaD writing. It has two characteristics: the first is its top-bottom symmetric shape; the second is its change of width, meaning the top is wide, and it narrows towards the middle, and then widens again as it goes down toward the bottom.

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

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

    Pages in category "Levels of organization (Biology)" The following 2 pages are in this category, out of 2 total. This list may not reflect recent changes. B.

  7. Organ (biology) - Wikipedia

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

    Tissues of different types combine to form an organ which has a specific function. The intestinal wall for example is formed by epithelial tissue and smooth muscle tissue. [2] Two or more organs working together in the execution of a specific body function form an organ system, also called a biological system or body system.

  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. Nucleic acid structure - Wikipedia

    en.wikipedia.org/wiki/Nucleic_acid_structure

    The most commonly seen form of higher-level organization of nucleic acids is seen in the form of chromatin which leads to its interactions with the small proteins histones. Also, the quaternary structure refers to the interactions between separate RNA units in the ribosome or spliceosome .