The "ABCD rule" for recognizing early signs of malignant melanoma refers to the following characteristics of the lesion:
A) area, border irregularity, color, and density
B) aspect, border irregularity, color, and distance
C) asymmetry, border irregularity, color, and diameter
D) aspect, brightness, color, and distance
E) asymmetry, brightness, color, and diameter
C
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The parts of an amino acid that are important in the protein buffer system are the
A. amino and R groups. B. monocarbonate and bicarbonate groups. C. amino and carboxyl groups. D. monohydrogen phosphate and dihydrogen phosphate groups.
Which has the greater concentration of hydrogen ions, a substance with a pH of 5 or a substance with a pH of 4?
A) A pH of 4 is greater. B) A pH of 5 is greater. C) They are both equal; 4 and 5 are relative values. D) pH 9, if you mixed the solutions. E) There is not enough information to determine the answer.
What structure receives blood from the venae cavae?
A) Right ventricle B) Left atrium C) Left ventricle D) Right atrium
Which of the following would NOT affect blood glucose levels?
A. fat content of a meal B. gastrointestinal hormones C. breakdown of glycogen D. autonomic nervous system E. protein content of a meal