1 As a gas, water takes the form of steam. 2  In steam, molecules move around at high speeds, independently of each other. 3  Because the molecules are not bound to each other, a gas has no fixed shape or fixed volume.
Split and merge into it. Answered by The Community. Making the world better, one answer at a time. the part of the alimentary canal responsible for peristalsis is the oesophagus or the food pipe.by wave like movements of the smooth muscles on the wall of the food pipe the food is sent to the stomach.he four basic tissue layers of the alimentary canal are: Mucosa, Submucosa, Muscularis externa, and the Serosa. From outer to inner: serosa, external muscle layer consisting of  outer circular and inner longitudinal, submucosa and mucous  membrane. 28 people found this useful.
The muscularis mucosa allows for movement of the mucosa independent of the wall of the digestive tract, thereby increasing its contact with food. In most of the alimentary canal, the muscularis mucosa consists of an inner circular and outer longitudinal layer of smooth muscle.The Submucosa: The submucosa consists of moderately dense irregular connective tissue. It contains blood and lymph vessels and nerve plexi.n most of the digestive tract, the muscularis externa consists of an inner circular and outer longitudinal layer of smooth muscle. The inner circular layer is arranged in a tight spiral, and its contraction results in the mixing of food by constricting the lumen of the tube.