Human Biology, 14 Edition

Published by McGraw-Hill Education
ISBN 10: 1-25924-574-8
ISBN 13: 978-1-25924-574-9

Chapter 23 - Assess - Page 527: 13

Answer

b.

Work Step by Step

Lucy was a specimen of $Australopithecus$ $afarensis$ who lived about 3.18 million years ago. She had a small brain, but according to her limb structure, she would have walked on two feet with an upright posture. This species may have given rise to the $Homo$ genus.
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