1. True or False: Two-layered membrane which covers the lungs is known as pericardium.   True   False   2. Which part of the respiratory tract is also known as the voice box?   Epiglottis   Pharynx   Trachea   Larynx   Hint Half-n-half Clue   3. Which cells of the blood carry oxygen to different parts of the body?   Red blood cells   C   B   Epiglottis   Half-n-half Clue   4. True or False: Exhalation and inhalation of air is known as "cellular respiration".   True   False   5. Exchange of air occurs in _______ which are also known as 'air sacs'.   Alveoli   Bronchioles   Alveolar ducts   Bronchi   Half-n-half Clue   6. Identify bronchus in this diagram.   A   B   C   D   Half-n-half Clue   7. Write the correct sequence of the pathway through which air travels after entering the body. A. Larynx, pharynx, trachea bronchioles B. Pharynx, larynx, trachea, bronchioles C. Pharynx, larynx, bronchioles, trachea D. Pharynx, trachea, larynx, bronchioles   A   B   C   D   Half-n-half Clue