Examples of natural in a Sentence. 1  furniture made of natural materials. 2  The river forms a natural boundary between the two countries. 3  natural foods like whole grain bread and fresh vegetables. 4  Gray hair is one of the natural consequences of getting older. 5  a natural increase in the population. 6  the natural course of the disease.
Synthesis. Definition. noun, plural: syntheses. (1) (biochemistry) The production of an organic compound in a living thing, especially as aided by enzymes. (2) (chemistry) The act or process of forming a complex substance by combining or integrating two or more chemical entities, especially through a chemical reaction. (3) (psychiatry) The integration of different elements of the personality, in opposition to analysis.
A cell junction (or intercellular bridge) is a type of structure that exists within the tissue of some multicellular organisms, such as animals.Cell junctions consist of multiprotein complexes that provide contact between neighbouring cells or between a cell and the extracellular matrix.nvertebrates have several other types of specific junctions, for example septate junctions or the C. elegans apical junction. In multicellular plants, the structural functions of cell junctions are instead provided for by cell walls. The analogues of communicative cell junctions in plants are called plasmodesmata.