1. 'C' shaped rings of cartilage are present in the   Trachea   Esophagus   Ureter   Intestines   Hint Half-n-half Clue   2. Gastric juice is secreted by   stomach   liver   small intestine   pancreas   Half-n-half Clue   3. True or false: Exchange of air takes place in the lungs.   True   False   4. Voice box is the name given to the   larynx   trachea   pharynx   oral cavity   Half-n-half Clue   5. _______ are formed by the division of trachea.   Bronchi   Bronchioles   Air sacs   Ureters   Half-n-half Clue   6. True or false: CO2 is formed as a waste product during respiration.   True   False   7. 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   Skip to Diagrammatic repr... ⇒