1. 'C' shaped rings of cartilage are present in the   Trachea   Esophagus   Ureter   Intestines   Hint Half-n-half Clue   2. Which of the following helps keep the human body cool? A. Respiration B. Mastication C. Perspiration D. Urination   A   B   C    D   Half-n-half Clue   3. Food descends from the mouth to the stomach through the   esophagus   larynx   small intestine   trachea   Half-n-half Clue   4. 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   5. Bile is secreted by the   liver   gall bladder   pancreas   small intestine   Half-n-half Clue   6. _______ are formed by the division of trachea.   Bronchi   Bronchioles   Air sacs   Ureters   Half-n-half Clue   7. _______ filter the blood to excrete harmful substances in the form of urine.   Kidneys   Lungs   Urinary bladder   Endocrine Glands   Half-n-half Clue   Skip to Diagrammatic repr... ⇒