Respiratory Organs in Animals — Prelims Questions

Which of the following animals primarily respires through its moist skin?

The countercurrent exchange mechanism for gas exchange is a characteristic feature of which respiratory organ?

Which of the following statements about the insect tracheal system is INCORRECT?

Which of the following adaptations is NOT typically found in an efficient respiratory surface?

Which animal possesses a respiratory system characterized by unidirectional airflow through parabronchi, aided by anterior and posterior air sacs?

Which of the following is an example of an animal that uses book lungs for respiration?