Which of the Following Describe the Placenta? (Check All That

Which of the following describe the placenta? (Check all that apply.)

A) The bloods of the mother and the embryo come in close contact without mixing.
B) The placenta neutralizes toxins like alcohol and drugs before they reach the fetus.
C) Oxygen diffuses from the mother to the embryo.
D) Carbon dioxide diffuses from the embryo to the mother.
E) The placenta provides nourishment and hormones to the embryo.
F) The antibodies made in the embryo protect the mother from infections.