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 alimentary canal, a canal that travels from mouth to the anus, has the same structure throughout, a wall with four main layers - the mucosa, submucosa, muscularis externa and serosa. The mucosa is the layer nearest the lumen and on its inner surface is a thin epithelium, which contains goblet cells.