During part of the normal menstrual cycle, when the levels of progesterone and estrogen decrease, what will occur?
A. Fertilization
B. Menstruation
C. Amenorrhea
D. Ovulation
Ans: B. Menstruation
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a. True b. False Indicate whether the statement is true or false
Epithelial cells lining the crop of some birds respond to the hormone prolactin
Indicate whether the statement is true or false
Which of the following would inhibit both gastric secretion and gastric motility?
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Hormones that can diffuse through the cell membrane and bind to nuclear receptors are:
A) Steroid hormones B) Paracrines C) Protein hormones D) Autocrines