Answer
c.
Work Step by Step
The researcher added orange dye to the outside of the frog gastrula, which corresponds to the ectoderm layer. The only organ among the options that develops from the ectoderm is option c., the brain.
Campbell Biology: Concepts & Connections (9th Edition)
by Taylor, Martha R.; Simon, Eric J.; Dickey, Jean L.; Hogan, Kelly A.; Reece, Jane B.
Published by
Pearson
ISBN 10:
0-13429-601-X
ISBN 13:
978-0-13429-601-2
Chapter 27 - Review - Page 565: 11
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