Answer:
I don't know many tests that show that but always think how much do you thibk you are doing is it enough or is it not enough
A lymphatic organ that helps develop the immune system is the thymus gland.
The gallbladder is part of the biliary system of the digestive system
9 ½ hours
The average amount of sleep that teenagers get is between 7 and 7 ¼ hours. However, they need between 9 and 9 ½ hours studies show.
