1.Discuss with your classmates if exercise would help prevent or treat constipation. Come up with a credible explanation for your argument, directly relating it to the digestive system. 
——————–
2. On Saturday, Mark has a waffle with syrup for breakfast at 7:30, and by 11:00 he feels hungry again. On Sunday, he has bacon and eggs and feels satisfied until noon when he normally eats lunch. If he is eating equal amounts of food on both days, why is there a difference in hunger?
———————————
3. Which of the following do you think would have the worst effect on digestion: surgical removal of the pancreas, gallbladder, or stomach? Explain.
—————————-

4. Why would a patient whose liver has been extensively damaged by hepatitis could show raised levels of thyroid hormone and bilirubin in the blood?