Answer
A.
Work Step by Step
Fitness here does not refer to physical condition (B.) but to how well a phenotype reproduces, not absolutely (C.), but relative to other phenotypes. Since A. is correct, D. is wrong.
Biology (11th Edition)
by Raven, Peter; Johnson, George; Mason, Kenneth; Losos, Jonathan; Singer, Susan
Published by
McGraw-Hill Education
ISBN 10:
1259188132
ISBN 13:
978-1-25918-813-8
Chapter 20 - Genes Within Populations - Review Questions - Understand - Page 419: 6
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