The main reason why an individual with type AB, Rh-negative blood cannot donate blood to an individual with type A, Rh-positive blood is because ________
A) anti-A antibodies in the recipient will agglutinate RBCs of the donor
B) anti-A antibodies in the donor will agglutinate RBCs of the recipient
C) anti-B antibodies in the donor will agglutinate RBCs of the recipient
D) anti-B antibodies in the recipient will agglutinate RBCs of the donor
E) anti-D antibodies in the donor will agglutinate RBC of the recipient
D
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Parathyroid hormone (PTH) causes
A. increased RANKL and decreased OPG. B. PTH has no effect on RANKL and OPG. C. increased RANKL and increased OPG. D. decreased RANKL and decreased OPG. E. decreased RANKL and increased OPG.
The higher we go in the mountains, the greater the atmospheric pressure, which causes a loss of oxygen. Comment on this statement.
What will be an ideal response?
Contraction of the circular smooth muscle in the gastrointestinal tract wall decreases the diameter of the lumen, while contraction of the longitudinal smooth muscle shortens the tract.
Answer the following statement true (T) or false (F)
Which of the following reduces the angle of a joint?
a. flexion b. rotation c. abduction d. extension e. adduction f. circumduction