1 In-text citations in parenthesis, with only the author's last name and page number included (Smith, p. 4). 2  Double-spaced lines, but with no extra line breaks between each citation. 3  Footnotes (superscripted) also used to provide non-essential information.
Muscularis Extema is the layer of the digestive tract wall that is responsible for peristalsis.
3. Peristalsis is a) the digestion of starch to sugar in the mouth b) the passing of food nutrients through the villi into the blood c) The rhythmic, wave-like contraction of the digestive tract that forces food through it d) the breaking down of fat by bile. 4.