An Important Developmental Event at 9 Weeks Gestational Age Is

Multiple Choice

An important developmental event at 9 weeks gestational age is that the

A) testes of a male embryo begin to produce androgens and that alters the development of the genitalia into a male reproductive system.
B) ovaries of a female embryo begin to produce estrogen and that alters the development of the genitalia into a female reproductive system.
C) conception implants in the lining of the uterus and establishes a connection with the maternal system.
D) placenta begins to function and now brings nutrients and oxygen to the developing embryo.