Life: The Science of Biology 11th Edition

Published by W. H. Freeman
ISBN 10: 1-31901-016-4
ISBN 13: 978-1-31901-016-4

Chapter 31 - Protostome Animals - 31.1 - Protostomes Account for More Than Half of All Described Species - 31.1 Recap - Learning Outcomes - Page 662: 2

Answer

Arthropods were vastly successful in spreading to land because they hard chitinous shells protected against desiccation. This exoskeleton also provided support for walking on land.

Work Step by Step

Arthropods were vastly successful in spreading to land because they hard chitinous shells protected against desiccation. This exoskeleton also provided support for walking on land.
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