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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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
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.