Valvular malfunction in the heart __________.
a. interferes with ventricular contraction
b. causes an increase in the amount of blood pumped out of each ventricle
c. interferes with movement of blood through the heart
d. increases the cardiac output
Answer: c. interferes with movement of blood through the heart
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A. pharynx B. colon C. anus D. appendix
Which of the following is characteristic of antibodies?
A) carbohydrate structure B) composed of heavy and light polypeptide chains C) three binding sites per antibody monomer D) incapable of being transferred from one person to another
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