Ask your own question, for FREE!
Biology 18 Online
OpenStudy (anonymous):

Please help for FAN AND MEDAL!!

OpenStudy (anonymous):

Carbon-14 has a half-life of approximately 5,730 years. How many half-lives have occurred in a sample that contains 25 percent of the original amount of the parent isotope? 1 2 3 4 This is A right?

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!