1. _______ are formed by the division of trachea.   Bronchi   Bronchioles   Air sacs   Ureters   Hint Half-n-half Clue   2. Which of the following helps in digestion? A. Pancreatic juice B. Saliva C. Bile D. All of these   A   B    C   D   Half-n-half Clue   3. Bile is secreted by the   liver   gall bladder   pancreas   small intestine   Half-n-half Clue   4. _______ filter the blood to excrete harmful substances in the form of urine.   Kidneys   Lungs   Urinary bladder   Endocrine Glands   Half-n-half Clue   5. True or false: Exchange of air takes place in the lungs.   True   False   6. Main function of molars and premolars is _______ the food.   grinding   cutting   circulating   tearing   Half-n-half Clue   7. Larger dust particles in the inhaled air are trapped in the   nose   pharynx   epiglottis   larynx   Half-n-half Clue   Skip to Diagrammatic repr... ⇒