The main function of the human digestive system is to
(1)break down food for absorption into the blood
(2) release energy from sugars within the cells
(3) carry nutrients to all parts of the body

true

explanation:

a genogram (also known as a mcgoldrick-gerson study, a lapidus schematic or a family diagram) is a pictorial display of a person's family relationships and medical history. it goes beyond a traditional family tree by allowing the user to visualize hereditary patterns and psychological factors that punctuate relationships.