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:Which of the following peoples can be found in most…SS1 Animal Husbandry Lesson Note on Respiratory…List FOUR characteristics of respiratory surfaces. -…The most efficient respiratory structure used by…The exchange of gases between the environment and…