Which of the following statements concerning the tracheal system in insects is false?
A) Tracheae are air sacs and tubular channels.
B) Tracheae penetrate virtually every part of an insect's body.
C) Tracheae extend through a single tube to an insect's mouth.
D) Tracheae provide oxygen to the insects' tissues.
E) Tracheae extend from external openings inward to tissues throughout the body.
Correct Answer:
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