Answered: What is a half-life? How is it used to…

What is a half-life? How is it used to date fossils? Give 2 or 3 examples of isotopes used for absolute dating of fossils.

Biology Today and Tomorrow without Physiology (MindTap Course List)

5th Edition

ISBN:9781305117396

Author:Cecie Starr, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Christine Evers, Lisa Starr

Chapter11: Evidence Of Evolution

Section: Chapter Questions

Problem 6SQ

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Concept explainers

Paleontology

A branch of science concerning the scientific study of life from ancient times is known as paleontology. The scientists working on paleontology are known as paleontologists. Paleontologists collect the fossils of organisms from ancient times to classify them. The paleontologists also study the environment from ancient times to study the interactions between different organisms.

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- What is a half-life? How is it used to date fossils?

Give 2 or 3 examples of isotopes used for absolute dating of fossils.

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When a radio-isotope in a fossil with a half-life of 4,000 years has been reduced to 25% of its original amount, how old is the fossil?
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