meiosis percent one vacuum covers from a dominance child room
lumen is cavity. walled_cavity is not cavity. posterior_chamber_of_eye is not walled_cavity. lumen is not cavity. posterior_chamber_of_eye is walled_cavity. vacuole is not walled_cavity. washroom is not toilet. uterine_cervix is not walled_cavity. vitreous_chamber_of_eye is not walled_cavity. uterine_cervix is walled_cavity.