Biology 2010 Student Edition

Published by Prentice Hall
ISBN 10: 9780133669510
ISBN 13: 978-0-13366-951-0

Chapter 16, Darwin's Theory of Evolution - 16.3 - Darwin Presents His Case - 16.3 Assessment - Page 464: 1b

Answer

Organisms that are more "fit" are able to reproduce more because they out-compete their less fit counterparts.

Work Step by Step

When an organism out-competes their competition, they are the ones who survive and reproduce. This causes their traits to be passed on.
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