Question

how is air taken to all parts of the body of an insect?​

Answer 1

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.

Explanation:

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Answer 2

• Firstly, 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.This network of transverse and longitudinal tracheae equalizes pressure throughout the system.
• It is responsible for delivering sufficient oxygen (O2) to all cells of the body and for removing carbon dioxide (CO2) that is produced as a waste product of cellular respiration. The respiratory system of insects (and many other arthropods) is separate from the circulatory system.

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