Inquiry into Life 14th Edition by Sylvia Mader,Michael Windelspecht

تمرين 2

Choose the best answer for each question.
During pregnancy,
A) the ovarian and uterine cycles occur more quickly than before.
B) GnRH is produced at a higher level than before.
C) the ovarian and uterine cycles do not occur.
D) the female secondary sex characteristics are not maintained.