Which of the following phrases describe the functions of the digestive system?
I. Smooth, muscular tube connects the mouth to the stomach
II. Muscular action in the esophagus pushes food to the stomach
III. Structures called microvilli increase the surface area of the intestines
IV. Nutrients are absorbed and then made available to the body’s cells
Step-by-step explanation: The reason why is because the digestive system is used when you eat your body absorbs all the nutrients from the food you ate to create energy.