T and B cells. Lymphocytes originate from stem cells in the bone marrow; these stem cells divide continuously, releasing immature lymphocytes into the bloodstream. Some of these cells travel to the thymus, where they multiply and differentiate into T lymphocytes, or T cells.
Cellophane is a thin, transparent sheet made of regenerated cellulose. Its low permeability to air, oils, greases, bacteria and water makes it useful for food packaging. Cellophane is in many countries a registered trade mark of Innovia Films Ltd based in Wigton, Cumbria, United Kingdom.
A sarcophagus (plural, sarcophagi; sarcophaguses) is a box-like funeral receptacle for a corpse, most commonly carved in stone, and displayed above ground, though it may also be buried.dded to the basin-like main sarcophagi is a broad, rectangular frame, often covered with a white slip and then painted. The huge Lycian Tomb of Payava, now in the British Museum, is a royal tomb monument of about 360 BC designed for an open-air placing, a grand example of a common Lycian style.