Answer
There is a single opening for entry of food and exit of waste material in the gastrovascular cavity. On the other hand, the digestive tract has separate entry and exit openings.
Work Step by Step
As above
Biology 2010 Student Edition
by Miller, Kenneth R.; Levine, Joseph S.
Published by
Prentice Hall
ISBN 10:
9780133669510
ISBN 13:
978-0-13366-951-0
Chapter 27, Animal Systems I - 27.1 - Feeding and Digestion - 27.1 Assessment - Page 786: 2b
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