-Which of the following is true regarding insect tracheal systems?
A) They are associated with the blood circulatory system.
B) They excrete body wastes as well as transport gases.
C) They depend on the opening and closing of spiracles.
D) The tracheal tubes are continually open in large terrestrial insects.
E) They contain respiratory pigments to enhance oxygen transport.

Question

-Which of the following is true regarding insect tracheal systems?
A) They are associated with the blood circulatory system. 
B) They excrete body wastes as well as transport gases. 
C) They depend on the opening and closing of spiracles. 
D) The tracheal tubes are continually open in large terrestrial insects. 
E) They contain respiratory pigments to enhance oxygen transport.

Quizplus · Accepted Answer

Insect tracheal systems rely on spiracles, which are openings that can open and close to regulate gas exchange and prevent water loss.

-Which of the Following Is True Regarding Insect Tracheal Systems