According to my research my answer would be A. Because GI occur more frequently in young athletes than in veterans <span />
Because the kidney is the one who produce the urine , a urine is a fluid that contains of ion , water and small soluble compounds. narrow muscular tubes in between the kidneys and bladder is called the ureters. the kidney has the renal cortex, real medulla, the renal pyramids and actually a lot more.
B. because entry points are vital to the spread of infection
