1. True or false: Exchange of air takes place in the lungs.   True   False   2. 'C' shaped rings of cartilage are present in the   Trachea   Esophagus   Ureter   Intestines   Hint Half-n-half Clue   3. _______ are formed by the division of trachea.   Bronchi   Bronchioles   Air sacs   Ureters   Half-n-half Clue   4. Which type of teeth are used for tearing the food?   Canines   Molars   Premolars   Incisors   Half-n-half Clue   5. Epiglottis guards the opening of larynx into pharynx.   True   False   6. Gastric juice is secreted by   stomach   liver   small intestine   pancreas   Half-n-half Clue   7. 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   Skip to Diagrammatic repr... ⇒