Question

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1 The alimentary canal is a muscular tube about 9 maters long. (What size) 2 The wall of the alimentary canal consists of four disfinct layers. (How many) 3 Mucous membrane is formed of surface epithelium and a small amount of smooth muscle. (What ... of) 4 The mucosa protects the tissues beneath. (What) 5 The fibers of the outer muscular coat run lengthwise. (How) 6 The cells of the serosa secrete serous fluid. (What)

Answer 1

1. What size is the alimentary canal?
2. How many disfinct layers does the wall of the alimentary canal consist of?
3. What is mucous membrane formed of?
4. What does the mucosa protect?
5. How do the fibers of the outer muscular coat run?
6. What do the cells of the serosa secrete?