What is the normal, programmed death of cells that have completed their function called?
A. Autophagy
B. Apoptosis
C. Atrophy
D. Necrosis
E. Hypoplasia
Answer: B
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Lulu is 53 and has not had her menstrual period in a year. Several times a day, she feels a tingling in her upper chest, and then heat washes over her, in an upward direction. It is intensely uncomfortable for about 5 minutes, during which she is nearly overwhelmed with an urge to fling off her clothing. The cause of Lulu's hot flashes is
A. a decrease in gonadotropin concentration and an increase in estrogen concentration. B. an increase in gonadotropin concentration and an increase in estrogen concentration. C. a decrease in gonadotropin concentration and a decrease in estrogen concentration. D. an increase in gonadotropin concentration and a decrease in estrogen concentration.
When jumping into water, you notice resistance. This resistance is caused by water's ________.
A. hydrophobic tension B. osmotic equilibrium C. adhesiveness D. cohesiveness E. hydrophilic tension
Arrange the following in correct sequence: 1 Ammonia is converted to urea in the liver. 2 Oxidative deamination of an amino acid. 3 Urea is eliminated by the kidney. 4 Ammonia and keto acids are formed
A. 1, 3, 4, 2 B. 2, 4, 1, 3 C. 3, 1, 4, 2 D. 4, 1, 3, 2 E. 2, 3, 1, 4
Which type(s) of muscle tissue is/are found in the walls of hollow internal organs?
A. Smooth B. Skeletal C. Cardiac D. Both smooth and skeletal