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Ananya Shree

Class 12th
Biology
2 years ago

Approximately how many times each day do our heart valves open and close normally? (a)10000 times (b)100000 times (c)150000 times (d)200000 times

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Muskan Anand

2 years ago

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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