Which of the following structures is associated with respiration in insects? by Sunday | Jun 23 | Biology WAEC | 0 comments A. Air sac B. Spiracle C. Lung D. Alveolus E. Gill Correct Answer: Option B – Spiracle Users Also Read These:In which of the following insects is group instinct…Which of the following structures is used for…Which of the following insects transmits swollen…Which of the following is NOT characteristic of…Which of the following are the final products of…