141.  In a day, How many times an individual inspire and expire (breathing) ?

A. 10,000

B. 20,000

C. 40,000

D. 50,000

Answer : Option C

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142.  What percentage of total metabolic energy is produced through fermentation of lactic acid ?

A. 80%

B. 70%

C. 100%

D. 40%

Answer : Option B

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