16. What is the major cause of stomach ulcers? * 1 point

A. Acid reflux
B. Stress
C. Helicobacter pylori
D. Alcohol

17. In which digestive organ is bolus produced? * 1 point

A. Stomach
B. Small Intestines
C. Mouth
D. Esophagus

18. Which of the following enzymes digest carbohydrates? 1 point

A. Amylase
B. Pepsin
C. Trypsin
D. Lipase 1

9. Water is absorbed in the _ . * 1 point

A. Small intestine
B. Stomach
C. Esophagus
D. Large intestine

20. During which phase of mitosis do the chromatin became highly condense and the nuclear membranes begin to disappear? * 1 point

A. Prophase
B. Metaphase
C. Anaphase
D. Telophase​