If the total pressure of a mixture of gases was 760 mm Hg and its composition is 20% oxygen, 0.04% carbon dioxide, 75% nitrogen, and 5% water vapor, then the partial pressure of oxygen would be
A. 740 mm Hg.
B. 20 mm Hg.
C. 148 mm Hg.
D. 152 mm Hg.
E. 200 mm Hg.
D
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A. mass movement. B. receptive relaxation. C. peristalsis. D. migrating motility complex. E. segmentation.
The first section of the nephron loop glomerular filtrate encounters is the ________
A) Proximal tubule B) Descending loop C) Distal tubule D) Ascending loop
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A) fruits only. B) meats and milk. C) vegetables only. D) breads and potatoes. E) leafy vegetables.
The two medial umbilical folds represent remnants of which of the following structures?
(A) urachus (B) umbilical arteries (C) umbilical veins (D) ductus venosus (E) ductus arteriosus