Which of the following structures is used for respiration in insects? By: Sunday|Published on: Nov 21|Categories: Biology WAEC| 0 comments A. Lungs B. Thorax C. Cuticle D. Spiracles Correct Answer: Option D D. Spiracles Users Also Read These:The following problems are likely to be caused by…Which of the following structures would carry out…The following are social insects except?Which of the following pairs are social insects?The following are biting and chewing insects except?SEE ALSO Which of the following components of Larmark’s theory of evolution is considered faulty?