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:The respiratory structures of insects are?The following insects undergo incomplete…Which of the following structures is not involved in…Which of the following insects transmits swollen…Which of the following structures is used for…