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.
The muscularis externa contains muscle layers responsible for the processes of peristalsis and segmentation. 3. In the oral cavity, the digestive enzyme _________ is found in saliva and begins the digestion of _________. amylase;starch.