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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Textbook Question
Chapter 39, Problem 4SQ

A bird's keratin-lined _______ helps it grind up food.

  1. a. pharynx
  2. b. crop
  3. c. gizzard
  4. d. gastrovascular cavity
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