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 24 - Self-Quiz - Page 413: 11

Answer

d. crustacean

Work Step by Step

Barnacles are crustaceans that spend their adult lives fixed in position. They secrete a calcium shell around themselves; barnacles live inside the shells with their heads in the down position. As larvae, barnacles can swim.
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