Excretory system
Respiratory system
Circulatory system
Digestive system
It carries the nutrients and the oxygen to your cells. It also transports waste substances.
It transforms the food we eat into nutrients and passes them to the blood. It also expels the undigested food out of the body as faeces.
It consists of the urinary system and the sweat glands. It eliminates the waste substances produces by the cells and mixes them with water to produce urine and sweat.
It passes the oxygen it takes from the air to the blood. It also released carbon dioxide out of our body.
