Which statement best describes peristalsis?
peristalsis is voluntary, two-way movement.
peristalsis moves the food along the digestive tract.
peristalsis breaks down carbohydrates in the mouth.
peristalsis absorbs water and nutrients.

The answer is Peristalsis moves the food along the digestive tract.

Peristalsis is a process of muscle contraction and relaxation which facilitate the movement of the food along the digestive tract. It begins in the esophagus and continues in the small intestine and later in the large intestine. In each organ, this process helps movement and absorption of food through the digestive tract.

The answer is b) gene