The respiratory organ found in the cockroach is the? by Sunday | Jun 27 | Biology WAEC | 0 comments A. air sac B. trachea C. lung book D. lung E. gill Correct Answer: Option B – trachea Users Also Read These:The most efficient respiratory structure used by…The exchange of gases between the environment and…In grasshopper/cockroach digestion starts from the?In which of the following vertebrates does the skin…SS1 Animal Husbandry Lesson Note on Respiratory…