06 Jan 2015
How long do mature red blood cells live?
Question: How long do mature red blood cells live?
Choices:
120 hours
120 days
112 days
112 hours
Correct answer:
120 days
You can find more trivia crack answers at triviacrackcheats.org or you may be interested in other games like Emoji quiz answers. For other game answers, just visit goldanswers.com.