Which of the following statements about insect respiration is false?
A. After diffusing through the walls of the
tracheoles, oxygen is delivered to the body
tissues by the circulatory system.
B. Air enters the bodies of insects through
abdominal openings called spiracles.
C. Air sacs increase the speed of air
movement through the respiratory system.
D. The insect respiratory system is composed
of a series of branching tubes called
tracheae.
E. None of the answer options is false.
A
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