Answer
c. dinoflagellates.
Work Step by Step
Corals rely on symbiotic dinoflagellates for sugar.
The dinoflagellates stay protected within the corals and provide the corals with oxygen and sugars which are needed by the corals to survive.
Biology: The Unity and Diversity of Life (14th Edition)
by Starr, Cecie; Taggart, Ralph; Evers, Christine; Starr, Lisa
Published by
Brooks/Cole Publishing Co.
ISBN 10:
1305073959
ISBN 13:
978-1-30507-395-1
Chapter 47 - Self-Quiz - Page 865: 12
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