Which of the following structures is used for respiration in insects? by Sunday | Nov 21 | Biology WAEC | 0 comments A. Lungs B. Thorax C. Cuticle D. Spiracles Correct Answer: Option D D. Spiracles Users Also Read These:In insects, the structures that perform the same…The following insects undergo incomplete…JSS 2 First Term Agricultural Science Lesson Note -…In which of the following insects is group instinct…Which of the following structures is associated with…