1. Bile is secreted by the   liver   gall bladder   pancreas   small intestine   Hint Half-n-half Clue   2. 'C' shaped rings of cartilage are present in the   Trachea   Esophagus   Ureter   Intestines   Half-n-half Clue   3. 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   4. Which of the following is not true? A. Heart rate in a healthy human adult is 60-64 beats per minute. B. Oxygen is transported to various parts of the body through blood. C. White blood cells help the body fight against infections. D. Platelets play an important role in clotting of blood.   A   C   B   D   Half-n-half Clue   5. True or false: CO2 is formed as a waste product during respiration.   True   False   6. _______ are formed by the division of trachea.   Bronchi   Bronchioles   Air sacs   Ureters   Half-n-half Clue   7. Voice box is the name given to the   larynx   trachea   pharynx   oral cavity   Half-n-half Clue   Skip to Diagrammatic repr... ⇒