And once the zygote is inside the uterus, it implants onto, it attaches onto the outer membrane the lining of the uterus known as the endometrium. And what the endometrium does is it supplies the developing zygote with the nutrients that it needs to actually develop further. Now, if there is no sperm cells found in our female reproductive system, then when the exile actually reaches our uterus, what happens is the exile, the ovum, along with the lining of the uterus, the endometrium is released into the surrounding environment. And this process takes place about a month in the female human organism. So this process is known as the menstrual cycle. So let's zoom in on our zygote, on our ovary, we basically get the following diagram.