1. How many teeth does an adult human being normally have?   16   20   30   32   Hint Half-n-half Clue   2. Which of the following is the common passage for the food eaten and the air breathed?   larynx   pharynx   esophagus   trachea   Half-n-half Clue   3. The stomach is lined with mucous membrane.   True   False   4. Which of the following prevents food from entering the trachea (wind pipe)?   glottis   pharynx   larynx   epiglottis   Half-n-half Clue   5. Which is not a part of the small intestine?   caecum   jejunum   duodenum   ileum   Half-n-half Clue   6. A tooth is made up of a solid bony tissue known as _______.   root   dentine   enamel   crown   Half-n-half Clue   7. The pancreas is located in front of the stomach.   True   False