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Biology miscellaneous
  1. Approximately how many times each day, do our heart valves open and close normally?
    1. 10,000 times
    2. 1,00,000 times
    3. 1,50,000 times
    4. 2,00,000 times
Correct Option: B

The opening and closing of heart valves is known as a heartbeat. The average human heart beats 100,000 times per day.


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