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.
1 If you plan to sterilize the bottle lids or nipples, wash them thoroughly as well. 2  If you're working with bottles that have caked-on substances inside, soak them in a mild bleach solution (a capful of bleach for each gallon of water) to loosen the substance, then wash with soapy water and rinse.. Wash the bottles. Use warm, soapy water to wash the insides and outsides of the bottles. Make sure to scrub around grooves in the neck of the bottle and remove all traces of food, then rinse the bottles well.