BIOLOGY
BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Chapter 33.6, Problem 1LO
Summary Introduction

To explain: Theway in which circular and longitudinal muscles in a segmented body facilitate movement.

Introduction: Bilaterians are animals with bilateral symmetry, which means the left and right sides of the embryo are mirror images. The bilateral symmetry allowed these animals to achieve high levels of specialization within parts of their bodies, such as the concentration of sensory structures at the anterior phores is truly bilateral.

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