1
THE SYSTEM THAT ALLOW US TO BE REPRUCED.
2
THE SYSTEM THAT MOVES BLOOD AN OTHER MATERIALS TROUGH OUR BODY
3
THE SYSTEM THAT TRANSFORM FOOD INTO NUTRIENTS AND ENERGY.
4
THE SYSTEM THAT REMOVES THE INNECESARY SUBSTANCES IN THE BODY
5
THE SYSTEM THAT SEND INFORMATION TO OUR BRAIN BY NERVES.
