This is also heterogeneous, i.e. a composite of carbon-poor iron and cementite. Going to very fast cooling (quenching) will result in a single-phase (not composite) material called martensite. Here the carbon doesn't have time to exit the iron, and this martensite phase is very hard, but also normally too brittle.
Epithelial tissue - to cover the inner and outer surfaces of the stomach The stomach is one of the organs that form the digestive system. The stomach contains various tissues, and each tissue is made of a particular type of cell. In order of increasing size and complexity: cells â tissues â organ (the stomach) â organ system (the digestive system)
In fact, many connective tissues are mostly composed of extracellular material. In the human body, extracellular matrix can be anything from bone, or cartilage, or blood plasma, or even a mix of extracellular proteins and fibers. Connective tissues are a diverse group of tissues that serve several different functions. second type of connective tissue is fibrous connective tissue which is composed mainly of dense fibers made of parallel bundles of collagen, which is an extracellular protein that forms rope-like filaments with great tensile strength.