Bundle: Biology: The Unity and Diversity of Life, Loose-leaf Version, 14th + LMS Integrated for MindTap Biology, 2 terms (12 months) Printed Access Card
Bundle: Biology: The Unity and Diversity of Life, Loose-leaf Version, 14th + LMS Integrated for MindTap Biology, 2 terms (12 months) Printed Access Card
14th Edition
ISBN: 9781305775480
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
bartleby

Videos

Textbook Question
Book Icon
Chapter 16, Problem 7SQ

If the half-life of a radioisotope is 20,000 years, then a sample in which three-quarters of that radioisotope has decayed is ______ years old.

  1. a. 15,000
  2. b. 26,667
  3. c. 30,000
  4. d. 40,000
Blurred answer
Students have asked these similar questions
Life first appeared on Earth ___________ of years ago.Choose one:   A.  billions B.  hundreds of thousands C.  thousands D.  millions
Radioisotopes are useful in dating fossils and rocks because   a. they are present in very high amounts.   b. they decay rapidly.   c. they decay in a predictable pattern over long time period.   d. their rate of decay changes over time.
Which of the following was likely MOST important for life to begin existing on Earth?   A. sunlight   B. DNA   C.  a source of oxygen   D. a source of energy
Knowledge Booster
Background pattern image
Biology
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Biology
ISBN:9781305967359
Author:STARR
Publisher:CENGAGE L
Text book image
Biology Today and Tomorrow without Physiology (Mi...
Biology
ISBN:9781305117396
Author:Cecie Starr, Christine Evers, Lisa Starr
Publisher:Cengage Learning
Necrosis vs. Apoptosis: Cell Death; Author: AMBOSS: Medical Knowledge Distilled;https://www.youtube.com/watch?v=zFrBwGfOQs0;License: Standard Youtube License