Biology - Single MCQs (Page 98)

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Q971. Exchange of oxygen and carbon dioxide between alveolar air and blood is governed...Q972. Esophagus opens only during ?...Q973. Enzyme carbonic anhydrase, in ______ speeds up the reaction?...Q974. Each of the alveolar sac is surrounded by ?...Q975. During which respiration, the respiratory pigment hemoglobin combines with oxyge...Q976. During swallowing of food, ______ is the opening covered by epiglottis?...Q977. During pneumonia which of the following gets accumulated in lung tissue?...Q978. During expiration the diaphragm becomes ?...Q979. Due to breakdown and collapse of ______ lung tissue is destroyed?...Q980. Cilia and mucous are found in ______...