Organ system is the answer according to me if it is one word question
The food that is not a good source of complex carbohydrates is milk.
<h3>What is carbohydrate?</h3>
The carbohydrate is one of the six classes of food. The six classes of food that we have are; fat, carbohydrates, protein, vitamins, minerals and water. Carbohydrates are made up of glucose molecules as it is a macromolecule.
These molecules are eaten for the purpose of energy because they are broken down in the body to give glucose which is a source of energy in the body.
Thus, the food that is not a good source of complex carbohydrates is milk.
Learn more about carbohydrates:brainly.com/question/14614055
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It entera from your body to the middle and then to the back and again.
