The "ABCD rule" for recognizing early signs of malignant melanoma refers to the following characteristics of the lesion:
A. aspect, border irregularity, color, and distance.
B. aspect, brightness, color, and distance.
C. area, border irregularity, color, and density.
D. asymmetry, border irregularity, color, and diameter.
E. asymmetry, brightness, color, and diameter.
Answer: D
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In the figure showing the veins of the lower extremity, what veins are indicated by number 5?
A. Great saphenous veins B. Fibular veins C. Anterior tibial veins D. Small saphenous veins E. Popliteal veins
Arrange the following in correct order.(1) Cotransport molecule binds to Na+ and glucose(2) Establish Na+ concentration gradient between tubular cells and tubular lumen(3) Sodium and glucose moved into tubular cell(4) Active transport of Na+ from tubular cells to interstitial area
A. 2, 1, 3, 4 B. 1, 3, 4, 2 C. 2, 4, 1, 3 D. 4, 2, 1, 3 E. 1, 2, 3, 4
How do iguanas maintain water and ion balance?
A) Marine iguanas produce urine that contains a higher ion concentration than blood. B) A specialized salt gland in their nose produces a highly concentrated salt solution that is expelled. C) Marine iguanas use their kidneys to excrete excess salt. D) Marine iguanas need to drink fresh water on land to maintain the optimal water and ion balance.
Which of the following is NOT a form of hemoglobin found in the developing human?
A. Fetal B. Embryonic C. Adult D. Adolescent