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  2. Osteon - Wikipedia

    en.wikipedia.org/wiki/Osteon

    Osteons on cross-section of a bone. In osteology, the osteon or haversian system (/ h ə ˈ v ɜːr. ʒ ən /; named for Clopton Havers) is the fundamental functional unit of much compact bone. Osteons are roughly cylindrical structures that are typically between 0.25 mm and 0.35 mm in diameter. [1]

  3. Plant anatomy - Wikipedia

    en.wikipedia.org/wiki/Plant_anatomy

    Chloroplasts in leaf cells of the moss Mnium stellare. Plant anatomy or phytotomy is the general term for the study of the internal structure of plants.Originally, it included plant morphology, the description of the physical form and external structure of plants, but since the mid-20th century, plant anatomy has been considered a separate field referring only to internal plant structure.

  4. Organography - Wikipedia

    en.wikipedia.org/wiki/Organography

    Organography as a scientific study starts with Aristotle, who considered the parts of plants as "organs" and began to consider the relationship between different organs and different functions. In the 17th century Joachim Jung, [ 1 ] clearly articulated that plants are composed of different organ types such as root, stem and leaf, and he went ...

  5. Glossary of plant morphology - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_plant_morphology

    Plant structures or organs fulfil specific functions, and those functions determine the structures that perform them. Among terrestrial (land) plants, the vascular and non-vascular plants (Bryophytes) evolved independently in terms of their adaptation to terrestrial life and are treated separately here (see Bryophytes ).

  6. Organ (biology) - Wikipedia

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

    The main tissues that make up an organ tend to have common embryologic origins, such as arising from the same germ layer. Organs exist in most multicellular organisms. In single-celled organisms such as members of the eukaryotes, the functional analogue of an organ is known as an organelle. In plants, there are three main organs. [3]

  7. Region by Region, This is What's On American's Christmas Tables

    www.aol.com/region-region-whats-americans...

    South. Ham – especially country ham – is a more common Christmas main dish in the South than elsewhere in the country, along with sides including mac & cheese and cornbread.Lechon, or spit ...

  8. Organ system - Wikipedia

    en.wikipedia.org/wiki/Organ_system

    Vascular plants have two distinct organ systems: a shoot system, and a root system. The shoot system consists stems, leaves, and the reproductive parts of the plant (flowers and fruits). The shoot system generally grows above ground, where it absorbs the light needed for photosynthesis. The root system, which supports the plants and absorbs ...

  9. Could This Overlooked Organ Hold The Key To Living Longer?

    www.aol.com/lifestyle/could-overlooked-organ...

    Despite the fact that half of the population has ovaries, this organ is still a bit of an enigma in the scientific and medical world. And this has broad-sweeping implications for female health and ...