The lining of the colon is different from the small intestine in that there exists a large number of mucous cells that do not secrete enzymes but rather mucous. The mucous helps protect the wall from the bacterial fermentation inside. About 1.5 L of liquid digestive contents, chyme, pass into the colon.
One important difference between communicable and non-communicable disease is that non-communicable diseases tend to be chronic, which means they last a long time and progress slowly. Communicable diseases are more likely to be acute, which means the disease develops quickly.
a communicable disease is one that is spread from one person to another through a variety of ways that include contact with blood and bodily fluids breathing in an airborne virus or by having contact with a little bug called lice for the most part communicable diseases are spread through viruses and