the air tubes of insets
Answers
Answered by
1
Answer:
INSECTS*
HOPE THIS HELPS U
MARK AS BRAINLIEST;))))
Explanation:
Air enters the respiratory systems of insects through a series of external openings called spiracles. These external openings, which act as muscular valves in some insects, lead to the internal respiratory system, a densely networked array of tubes called tracheae.
Similar questions