The given figure shows the diagrammatic view of human respiratory system. Identify A, B, C and D.
Find the odd-man-out:
(a) gastric juice, intestinal juice, saliva, alveoli.
(b) diaphragm, pancreas, alveoli, trachea.
Match the following:
Column I Column II
i. Larynx a. Air sacs
ii.Trachea b. Lid of larynx iii. Alveoli c. Voice box
iv. Epiglottis d. Windpipe