A tuple is a fixed fixed-length list containing elements that need not have the same type. It can be, and often is, used as a key-value pair. A row (sometimes called a record) is the set of fields within a table that are relevant to a specific entity.
The stem wall on a concrete foundation is essentially the supporting wall that joins the foundation of a building to the vertical walls of the structure that is constructed atop the foundation.
The most conspicuous surface area is the plant's shoot, which is an integrated system of stems and leaves. Stems support leaves (the hat racks upon which plants hang their solar collecting leaves). Stems and their function. A stem is a collection of integrated tissues arranged as nodes and internodes. Nodes - regions where leaves attach to stems. Internodes - parts of the stem between successive nodes. A cross section of a dicot stem would reveal: a.