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  2. Histology - Wikipedia

    en.wikipedia.org/wiki/Histology

    There are four basic types of animal tissues: muscle tissue, nervous tissue, connective tissue, and epithelial tissue. [5] [9] All animal tissues are considered to be subtypes of these four principal tissue types (for example, blood is classified as connective tissue, since the blood cells are suspended in an extracellular matrix, the plasma). [9]

  3. Tissue (biology) - Wikipedia

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

    In biology, tissue is an assembly of similar cells and their extracellular matrix from the same embryonic origin that together carry out a specific function. [1] [2] Tissues occupy a biological organizational level between cells and a complete organ. Accordingly, organs are formed by the functional grouping together of multiple tissues. [3]

  4. Cell biology - Wikipedia

    en.wikipedia.org/wiki/Cell_biology

    This was ultimately concluded by plant scientist Matthias Schleiden [5] and animal scientist Theodor Schwann in 1838, who viewed live cells in plant and animal tissue, respectively. [ 3 ] 19 years later, Rudolf Virchow further contributed to the cell theory, adding that all cells come from the division of pre-existing cells. [ 3 ]

  5. Cell (biology) - Wikipedia

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

    1665: Robert Hooke discovered cells in cork, then in living plant tissue using an early compound microscope. He coined the term cell (from Latin cellula, meaning "small room" [41]) in his book Micrographia (1665). [42] [40]

  6. Biology - Wikipedia

    en.wikipedia.org/wiki/Biology

    Biology is the scientific study of life. [1] [2] [3] It is a natural science with a broad scope but has several unifying themes that tie it together as a single, coherent field.

  7. How rare are female school shooters?

    www.aol.com/news/data-says-rare-female-shooters...

    Of 544 school shooting incidents over an 11-year period, less than 5% of the shooters were female, according to Everytown for Gun Safety.

  8. Detroit Lions coordinators will be among the hottest NFL head ...

    www.aol.com/detroit-lions-coordinators-among...

    “Those guys are going to both be head coaches, eventually,” Campbell said. “Whether it’s now, whether it’s like, whatever the case may be, it’s good for them to see it.

  9. Epithelium - Wikipedia

    en.wikipedia.org/wiki/Epithelium

    Epithelium or epithelial tissue is a thin, continuous, protective layer of cells with little extracellular matrix. An example is the epidermis, the outermost layer of the skin. Epithelial (mesothelial) tissues line the outer surfaces of many internal organs, the corresponding inner surfaces of body cavities, and the inner surfaces of blood vessels.