A bad line measurement (aka control) is set up so that you can compare your results from each test against so it gives the values a meaning as it shows how they differ from eachother
The answer is relative dating.
Cirrhosis of the liver is a disease that effects the function of the liver. the liver has a function to clean out and detoxify the body. If at that point the liver cannot clean out the toxins you either have dialysis to help clean out the toxins in the liver. it causes the kidneys not to function correctly and you may need a kidney transplant.
Explanation:
A cell's lipid bilayer allows to small uncharged substances such as: ions, hydrophobic molecules, oxygen and carbone dioxide to travel through the membrane by simple diffusion