Biology (11th Edition)

Published by McGraw-Hill Education
ISBN 10: 1-25918-813-2
ISBN 13: 978-1-25918-813-8

Chapter 22 - The Origin of Species - Review Questions - Understand: 11

Answer

A.

Work Step by Step

A. is true, as at the Cretaceous/Tertiary boundary: species diversity has varied widely, contradicting B.-D. Note that C. and D. essentially say the same thing in different ways.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.