False. You can not drown in a shower. You need those things so you don't fall.
The best answer for the blood vessels' valves would be these are veins that would then help in preventing the back flow of blood because the walls have small muscle to pump the blood back to the heart.Hope this is the answer.
Search the internet for the answers :3
If this is a true or false question, the answer would be true. There are reasons why an insurance needs to be verify as to know the details of the patient especially the current ones and if the patient is covered with the insurance. Information like the name, date of birth,current address and insurance information with the card are all vital.
