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Peristalsis
The muscle action that mixes chyme with digestive juices throughout the digestive system is called Peristalsis. Peristalsis are wave-like of contractions and expansions of muscles. The muscles help to move the bolus (food) through the digestive tract. Peristalsis are located all over the digestive tract.
The first task of the digestive system is to break down food into a fine pulp (mechanical digestion). When the food is physically broken down, digestive chemicals break the food down into small molecules (chemical digestion). The mouth is the organ in which the process of digestion begins.(Google)
Peristalsis
For generating energy, there is the Circulatory System and the digestive system. :)
I think this will answer you correctly. http://www.tutorvista.com/content/biology/biology-ii/nutrition/human-digestive-system.php
The body system that the colon belongs to is the digestive system. The colon is also known as the large intestine.
The Gullet Is Part Of The Digestive System
help the digestive system
The food you eat (and drink) contains calories, which are a measure of the energy content, which you absorb in your digestive system
Gastro intestinal tract /systemThe digestive system.
Fat breaks into fatty acids and glycerol by the action of lipase in the small intestine.