As the Zygote Moves Through the Fallopian Tube Toward the Uterus

Multiple Choice

As the zygote moves through the fallopian tube toward the uterus, it

A) undergoes little change until after implantation.
B) begins to reproduce itself through the process of meiosis.
C) begins to reproduce itself through the process of mitosis.
D) undertakes such rapid differentiation that by the time of implantation, it already looks quite human.