Example-IP Rating. With the IP rating IP 54, 5 describes the level of protection from solid objects and 4 describes the level of protection from liquids. An X can used for one of the digits if there is only one class of protection, i.e.IPX1 which addresses protection against vertically falling drops of water e.g. condensation..ith the IP rating IP 54, 5 describes the level of protection from solid objects and 4 describes the level of protection from liquids.
The bladder is the organ that stores urine. Urine is made in the kidneys and passes to the bladder down two tubes called the ureters. The bladder is a stretchy bag made of muscle tissue. It can store about 500mls (or 3 cups) of urine.rine is made in the kidneys and passes to the bladder down two tubes called the ureters. The bladder is a stretchy bag made of muscle tissue. It can store about 500mls (or 3 cups) of urine.
Epithelial tissues, such as the skin, provides a protective barrier from the outside environment. Sweat glands in the epidermis enable sweat to evaporate from the body. The kidneys are made up of epithelial tissue. The liver is made up of epithelial tissue.The epidermis creates a tough, renewable, waterproof barrier that protects human bodies against the environment.weat glands in the epidermis enable sweat to evaporate from the body. The kidneys are made up of epithelial tissue. The liver is made up of epithelial tissue. The epidermis creates a tough, renewable, waterproof barrier that protects human bodies against the environment.