Concepts of Biology 1st Edition by Samantha Fowler, Rebecca Roush, James Wise,OpenStax

تمرين 2

Figure 18.17 Which of the following statements about hormone regulation of the female reproductive cycle is false?
a. LH and FSH are produced in the pituitary, and estrogen and progesterone are produced in the ovaries.
b. Estradiol and progesterone secreted from the corpus luteum cause the endometrium to thicken.
c. Both progesterone and estrogen are produced by the follicles.
d. Secretion of GnRH by the hypothalamus is inhibited by low levels of estrogen but stimulated by high levels of estrogen.