36. The part of the female reproductive system that serves as a passageway for semen to go from the vagina to the uterus and also seals the uterus during
pregnancy is the:

Its gravity holds the solar system together, keeping everything – from the biggest planets to the smallest particles of debris – in its orbit. The connection and interactions between the Sun and Earth drive the seasons, ocean currents, weather, climate, radiation belts and auroras.