The ________ completely encloses the embryo and provides it with a stable environment
A) chorionic villus
B) amnion
C) yolk sac
D) allantois
E) chorion
B
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Erythrocytes transport oxygen and __________.
A. defend the body against pathogens B. initiate blood clotting C. regulate erythropoiesis D. transport nutrients E. transport some carbon dioxide
Which of the following statements about juxtamedullary nephrons is incorrect?
a. Their glomeruli lie in the renal medulla. b. They are important in the ability of the kidneys to concentrate urine. c. Their loops of Henle dip deep into the medulla. d. Their peritubular capillaries form vasa recta. e. They are not the predominant type of nephron found in human kidneys.
Which of the following are symptoms of inflammation?
A. Swelling, bleeding, and numbness B. Heat, swelling, and blistering C. Blistering, pain, and swelling D. Redness, heat, and pain E. Pain, redness, and bleeding
A fenestrated squamous epithelium can be observed in this structure within the kidney
A) distal convoluted tubule B) proximal convoluted tubule C) glomerulus D) nephron loop