Why We Vomit. In many cases, throwing up is a protective reflex to rid your body of viruses, bacteria, or parasites in your digestive system. âIf you were to eat something that was spoiled or poisoned, your body would get a signal that something was wrong,â says Bruno Chumpitazi, MD, of Texas Childrenâs Hospital.
Parafilm is ideal for the scientific laboratory because it is a thermoplastic, self-sealing film. It holds moisture loss to a minimum. It offers excellent protection for the contents of tubes, flasks, and petri dishes.
Microfilm and microfiche contain miniaturized images of pages from printed text such as archival documents, newspapers, magazines, journals, and books.These formats are used to preserve fragile materials and to save space in a library. Microfilm is a spool of 16mm or 35 mm film:Microfiche is a card:icrofilm and microfiche contain miniaturized images of pages from printed text such as archival documents, newspapers, magazines, journals, and books.