meiosis percent one vacuum covers from a dominance child room
posterior_chamber_of_eye is walled_cavity. domination is dominance. lumen is cavity. vacuole is walled_cavity. walled_cavity is cavity. vitreous_chamber_of_eye is walled_cavity. passenger_compartment is walled_cavity. mediastinum is walled_cavity. uterine_cervix is walled_cavity. control_unit is spatial_thing.