Only for those groups have scientists almost completely identified all the world's species. Biologists have yet to describe many species of plants, invertebrate animals and lichens. So the number of these species known to science increases substantially every year.
The interglandular tissue is also increased in quantity, and is crowded with large round, oval, or polygonal cells, termed decidual cells. Their enlargement is due to glycogen and lipid accumulation in the cytoplasm allowing these cells to provide a rich source of nutrition for the developing embryo.rom Wikipedia, the free encyclopedia. Before the fertilized ovum reaches the uterus, the mucous membrane of the body of the uterus undergoes important changes and is then known as the decidua.
Cell Type: mesenchymal cell. Cell Source: white adipose (fat) tissue. Cell Characteristics: Differentiated adipocytes are spherical in shape with differences in fat organelle (lipid droplet) size. Most space in the adipocyte is composed of fat organelles.Mature adipocytes often contain a single large lipid droplet.dipocytes store energy for the body in the form of triacylglycerol and play a critical role in lipid metabolism and energy regulation. Adipocytes have also been found to express a wide range of cytokines, chemokines, receptors, and cell adhesion molecules capable of inducing inflammation.