Skull does not belong as it protects the brain, while the others are part of the axial skeleton that makes up the central core of the body.
The pelvis filters out the food you eat. So it basically poops out your food
The renal pelvis collects urine filtrate from the collecting tubules.
They belong to the nervous system
Scapula does not belong. The ischium, ilium, and pubis are bones of the pelvis, while the scapula is a bone of the shoulder girdle.
The kidneys belong to the excretory system.
Veins belong to the circulatory system, because they transport blood there for they belong to the circulatory system.
The eyes belong to the Nervous system.
Arteries and veins belong to the cardiovascular system.
The lungs belong to the Respiratory System.
Livers of all animals belong to the digestive system.
what part of of organ system that the skin belong