Which of the following structures is not involved in respiration? by Sunday | Nov 24 | Biology WAEC | 0 comments A. Lung books B. Mouth C. Stomach D. Trachea Correct Answer: Option C C. Stomach Users Also Read These:Which of the following structures is not essential…Which of the following structures would carry out…Which of the following structures is not an organ of…Which of the following pairs of structures in living…JSS 2 First Term Agricultural Science Lesson Note -…