Oxygenated blood reaches the fetus through the ________
A) placental sinus
B) umbilical vein
C) maternal arteries
D) umbilical arteries
E) maternal vein
B
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The enzyme ATPase occurs in the globular portion of myosin molecules.
Answer the following statement true (T) or false (F)
Absence of a cytoskeleton might affect
A. cell shape. B. the ability of the cell to generate energy. C. membrane transport. D. vesicle formation. E. the number of channel proteins in the cell membrane.
In the developing embryo, the midgut rotates 270 degrees around which of the following structures?
(A) superior mesenteric artery (B) celiac trunk (C) splenic artery (D) left renal artery (E) inferior vena cava
Which of the following would NOT be transported during tubular resorption?
a) urea b) mineral ions c) amino acids d) water e) simple sugar