Question 35
Digestive System of Farm AnimalsThe diagram below illustrates a portion of the digestive system of a fowl.
Digestive enzymes are secreted in the parts labelled

- A.I and II only.
- B.II and III only.
- C.II and IV only.
- D.I, II and IV only.
Show the answer and explanation
Answer: C (II and IV only.)
Explanation
Enzymes are secreted by the proventriculus (II) and the intestine (IV); the crop (I) and gizzard (III) only store and grind.