Solved

Approximately How Many Times Does an Average Human Heart Beat

Question 92

Multiple Choice

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

A) 4 × 10⁵
B) 4 × 10⁶
C) 4 × 10⁷
D) 4 × 10⁸
E) 4 × 10⁹

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