Answer
a. tests
Work Step by Step
Foraminiferans and the radiolarians both have a skeleton called a test. A test is made of calcium carbonate. Therefore, skeletons called a. tests are formed by rhizarians and can be used to date fossils.
Biology 12th Edition
by Mader, Sylvia; Windelspecht, Michael
Published by
McGraw-Hill Education
ISBN 10:
0078024269
ISBN 13:
978-0-07802-426-9
Chapter 21 - Protist Evolution and Diversity - Assess - Page 394: 15
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