1. Which of the following helps in digestion? A. Pancreatic juice B. Saliva C. Bile D. All of these   A   B    C   D   Hint Half-n-half Clue   2. True or false: Exchange of air takes place in the lungs.   True   False   3. _______ are formed by the division of trachea.   Bronchi   Bronchioles   Air sacs   Ureters   Half-n-half Clue   4. Voice box is the name given to the   larynx   trachea   pharynx   oral cavity   Half-n-half Clue   5. 'C' shaped rings of cartilage are present in the   Trachea   Esophagus   Ureter   Intestines   Half-n-half Clue   6. Which type of teeth are used for tearing the food?   Canines   Molars   Premolars   Incisors   Half-n-half Clue   7. Gastric juice is secreted by   stomach   liver   small intestine   pancreas   Half-n-half Clue   Skip to Diagrammatic repr... ⇒