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.
Definition of biofilm from the Collins English Dictionary Indefinite pronouns The indefinite pronouns are used when you do not know or do not need to say precisely who or what you are referring to.