Long direct quotations in MLA format. Long direct quotations consists of quotations that are longer than four lines of prose or three lines of verse, and the MLA format dictates how these are presented. 1  Use a free-standing block of text (block quote). 2  Omit the quotation marks. 3  Start the direct quotation on a new line. 4  Indent one inch from the left margin. 5  Indent the first word of 6  ... U
The gastrovascular cavity is a structure found in primitive animal phyla. It is responsible for both the digestion of food and the transport of nutrients throughout the body. The cavity has only one opening to the environment. Food goes in and waste comes out that same opening, making it a two-way digestive tract.
With this type of digestive system there is a single opening, the mouth, in which food will enter and digestive waste will be eliminated. The gastrovascular cavity not only serves as the site of digestion but also is important in support (as it is filled with water), gas exchange, and the excretion of metabolic wastes.ith this type of digestive system there is a single opening, the mouth, in which food will enter and digestive waste will be eliminated. The gastrovascular cavity not only serves as the site of digestion but also is important in support (as it is filled with water), gas exchange, and the excretion of metabolic wastes.