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.
Unlike boiling the bottles, it does not remove all bacteria though. 2. Use a microwave to clean a baby bottle. Wash the bottle parts with soap and water, and place them in the microwave separately. Run for about ninety seconds and allow time to cool. 3. Use cold water sterilization.