Biology
Medium
Question
Heart beats about ________ times in one’s life.
A
2.8 Billion
✓ Official correct answer
B
3.7 Billion
C
4.2 Billion
D
Infinite
Community credibility
Registered members can vote for the answer they believe is correct today and explain why. If the facts change after an election or news event, suggest a new option so others can vote it up.
A
2.8 Billion
No member explanations yet for this option.
B
3.7 Billion
No member explanations yet for this option.
C
4.2 Billion
No member explanations yet for this option.
D
Infinite
No member explanations yet for this option.