Blood is a fluid connective tissue that performs many functions in the body. It carries oxygen and nutrients to the cells, hormones (chemical messengers) to the tissues, and waste products to organs that remove them from the body.
A wash bottle is a squeeze bottle with a nozzle, used to rinse various pieces of laboratory glassware, such as test tubes and round bottom flasks. Wash bottles using in laboratories. Wash bottles are sealed with a screw-top lid.
An egg wash is composed of beaten egg combined with liquid and sometimes salt. There are two primary functions of an egg wash: It is either brushed atop a food item and to enhance its visual appearance and finished texture, or is employed as a glue to make items stick together.