Biology
Medium
Question
The number of alveoli in human lungs is estimated to be around:_________?
A
150 millions
B
500 millions
✓ Official correct answer
C
800 millions
D
1 billion
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
150 millions
No member explanations yet for this option.
B
500 millions
No member explanations yet for this option.
C
800 millions
No member explanations yet for this option.
D
1 billion
No member explanations yet for this option.