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Approximately How Many Times Does an Average Human Heart Beat

Question 91

Multiple Choice

Approximately how many times does an average human heart beat in a lifetime?

A) 3 × 10¹¹
B) 3 × 10¹⁰
C) 3 × 10⁹
D) 3 × 10⁸
E) 4 × 10⁷

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