1. The stomach is lined with mucous membrane.   True   False   2. The minute projections present in the small intestine are called cilia.   True   False   3. How many teeth does an adult human being normally have?   16   20   30   32   Hint Half-n-half Clue   4. Which is not a part of the small intestine?   ileum   jejunum   caecum   duodenum   Half-n-half Clue   5. Which is the largest organ in the human body?   pancreas   large intestine   liver   small intestine   Half-n-half Clue   6. Which of the following is the common passage for the food eaten and the air breathed?   pharynx   esophagus   trachea   larynx   Half-n-half Clue   7. The surface of the crown of the tooth is covered with a strong protective layer known as the _______.   cavity   dentine   root   enamel   Half-n-half Clue