Answer:
Circulatory System
Explanation:
As soon as 5he digestive system has broken down the foods to their smallest unit, the circulatory system helps to move the nutrient to where they are needed.
Blood is a medium of transport in higher vertebrates and is being pumped by the heart and flows through network of capillaries. Blood also transport oxygen that helps in the breakdown of carbohydrates to produce energy and get rid of waste such as carbondioxide through the excretory system.
