The most common blood type is
A) type A.
B) type B.
C) type AB.
D) type O.
E) type AO.
D
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A polymer is made up of several subunits called __________.
Fill in the blank with correct word.
Which of the following statements is true?
A. When the pressure in the lung is greater than inside the body, air flows from the body until the pulmonary and atmospheric pressures are equal. B. When the pressure in the lung is greater than outside the body, air flows from the body until the pulmonary and atmospheric pressures are equal. C. When the pressure in the lung is greater than outside the body, air flows into the body until the pulmonary and atmospheric pressures are equal. D. When the pressure in the lung is less than outside the body, air flows from the body until the pulmonary and atmospheric pressures are equal.
The final electron acceptor in aerobic cell respiration is ________.
A. water B. carbon dioxide C. ATP D. oxygen
Bacteria constitute about ________% of the dry weight of the feces.
A. 2 B. 55 C. 80 D. 30 E. 14