Biology 12th Edition

Published by McGraw-Hill Education
ISBN 10: 0-07802-426-9
ISBN 13: 978-0-07802-426-9

Chapter 21 - Protist Evolution and Diversity - Assess - Page 393: 8


c. silica

Work Step by Step

A diatom is a tiny, single-celled stramenopile. It has an ornate silica shell. The shell is made up of valves that fit together. Therefore, the main component of a diatom shell is c. silica.
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