Answer
8. d. pulmonary trunk
Work Step by Step
The lungs of the fetus are not functional until after birth; therefore, a functioning pulmonary trunk is not necessary in the circulation of the embryo/fetus.
Human Biology, 14 Edition
by Mader, Sylvia; Windelspecht, Michael
Published by
McGraw-Hill Education
ISBN 10:
1-25924-574-8
ISBN 13:
978-1-25924-574-9
Chapter 18 - Assess - Page 409: 8
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