Answer
B.
Work Step by Step
A is wrong since stromatolites formed in shallow, not deep, water, and C is wrong since stromatolites involve neither plants nor fungi. D can be excluded since it was not eukaryotes which formed the stromatolites.
Campbell Biology (11th Edition)
by Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky
Published by
Pearson
ISBN 10:
0-13409-341-0
ISBN 13:
978-0-13409-341-3
Chapter 25 - Test Your Understanding - Level 1 - Knowledge/Comprehension - Page 548: 1
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