Multiple Choice
The medication known as mifepristone or RU-486
A) kills sperm as they enter the female reproductive tract.
B) blocks the progesterone receptors of cells in the uterine lining and causes the loss of an implanted embryo.
C) prevents an egg from maturing and being released-essentially a stronger regular birth control pill.
D) destroys the embryo which in turn causes a spontaneous miscarriage.
E) prevents development of a uterine lining.
Correct Answer:

Verified
Correct Answer:
Verified
Q11: What is parthenogenesis?<br>A)a sexual means of internal
Q18: The organ that exchanges molecules between fetal
Q45: Identify the correct order of events for
Q46: Identify and briefly describe the function of
Q47: In the human male, sperm cells are
Q47: Why does semen contain alkaline secretions?<br>A)Alkaline secretions
Q48: The structure from which an egg is
Q51: Which of the following is not one
Q54: In a species of desert lizard, only
Q55: What is the probable biological and evolutionary