1. How many teeth does an adult human being normally have?   16   20   30   32   Hint Half-n-half Clue   2. Which is not a part of the small intestine?   ileum   caecum   jejunum   duodenum   Half-n-half Clue   3. A tooth is made up of a solid bony tissue known as _______.   enamel   root   dentine   crown   Half-n-half Clue   4. The surface of the crown of the tooth is covered with a strong protective layer known as the _______.   enamel   root   dentine   cavity   Half-n-half Clue   5. Which is the largest organ in the human body?   pancreas   small intestine   large intestine   liver   Half-n-half Clue   6. Which of the following is the common passage for the food eaten and the air breathed?   pharynx   esophagus   larynx   trachea   Half-n-half Clue   7. Which of the following prevents food from entering the trachea (wind pipe)?   glottis   epiglottis   pharynx   larynx   Half-n-half Clue   FREE PREVIEW: Last 8 Questions not a part of the free preview. Get Premium Membership to view all questions.