Biology: The Unity and Diversity of Life (MindTap Course List)
Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN: 9781337408332
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 19, Problem 4SQ

According to one hypothesis, negatively charged clay particles played a role in early ______ .

  1. a. protein formation
  2. b. DNA replication
  3. c. photosynthesis
  4. d. oxygen declines
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