Identical twins or triplets.
Implantation.
Implantation
The journey of the zygote from the fallopian tube to the implantation site in the uterus typically takes around 5-7 days. This journey involves the zygote traveling through the fallopian tube and reaching the uterine cavity, where it eventually implants itself into the uterine lining.
the zygote travels down the fallopian tube and attaches itself to the thick end lining of the uterus.
Implantation is the medical term meaning attachment of the zygote to the uterine wall. If the zygote does not attach, a period occurs.
Identical twins.
A zygote travels from the oviduct to the uterus for implantation and further development into an embryo. This journey is facilitated by ciliary movement in the oviduct and uterine contractions.
One reproductive system alone does not produce a zygote. A human zygote is made from the joining of gametes (sperm and egg) from the male and female reproductive systems.
The answer to your question is a zygote. From there, it develops to an embryo and a foetus. Happy science!!!
Zygote
It produces a zygote.
After fertilization, the egg and sperm fuse to form a zygote. The zygote undergoes multiple cell divisions, developing into an embryo. The embryo implants into the uterine lining, where it continues to grow and develop into a fetus.