Biology: The Unity and Diversity of Life (14th Edition)

Published by Brooks/Cole Publishing Co.
ISBN 10: 1305073959
ISBN 13: 978-1-30507-395-1

Chapter 26 - Self-Quiz - Page 446: 3


c. bipedalism

Work Step by Step

Apes who walk on their knuckles have C-shaped backbones, which allows them to hunch over and lean on their knuckles; humans have S-shaped backbones that allow their heads to sit directly over their feet so they can walk upright.
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.