The map includes 83 â or nearly 4 percent â of the 2,106 mosques in the United States as of 2010. Mosques from Clarion Projectâs list were excluded if TheDCNF could not verify their addresses. These include Islamist communes like Islamberg in New York. Several mosques on the Clarion Projectâs list stand out. Dar al-Hijrah, located just outside Washington in Falls Chruch, Virginia, for example, was the place of worship for two of the 9/11 hijakers.
Platelets are derived from bone marrow cells called megakaryocytes. Megakaryocytes are huge cells that break into fragments to form platelets. These cell fragments have no nucleus but do contain structures called granules.
All of these cells are generated from a single, totipotent cellâthe zygote, or fertilized egg. Most scientists use the term pluripotent to describe stem cells that can give rise to cells derived from all three embryonic germ layersâ mesoderm, endoderm, and ectoderm.These three germ layers are the embryonic source of all cells of the body (see Figure 1.1. Differentiation of Human Tissues).All of the many different kinds of specialized cells that make up the body are derived from one of these germ layers (see Table 1.1.ll of these cells are generated from a single, totipotent cellâthe zygote, or fertilized egg. Most scientists use the term pluripotent to describe stem cells that can give rise to cells derived from all three embryonic germ layersâ mesoderm, endoderm, and ectoderm.