Where does the fertilized egg normally implant and develop?

The correct answer is the uterus because this is the primary site for implantation and development of the fertilized egg. After fertilization occurs in the fallopian tube, the fertilized egg, now called a zygote, undergoes several cell divisions as it travels down to the uterus. Once it reaches the uterus, the zygote implants itself into the thick, nutrient-rich uterine lining, where it can receive the necessary support and environment for growth and development throughout the pregnancy.

The fallopian tube is where fertilization occurs, but it is not where the embryo grows. The placenta is an organ that develops later during pregnancy, serving as the interface between the mother and fetus and providing nutrients and oxygen, but it is not the site of implantation. The cervix serves as the lower part of the uterus, playing a role in protecting the uterus and during childbirth, but it is not involved in the implantation or developmental stages of the fertilized egg.