Which of the following structures is not a part of the digestive tract of pigs? by Sunday | Jun 8 | Agricultural Science WAEC | 0 comments A. oesophagus B. proventriculus C. duodenum D. colon Correct Answer: Option B – proventriculus Users Also Read These:In the diagram of the digestive tract of a farm…JSS 2 First Term Agricultural Science Lesson Note -…The most likely mode of an organism that possesses…Which of the following structures is not an organ of…Which of the following structures produces the…