Question

how do cockroaches breathe? which organ they use?
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Answer 1

Answer:

They do this by using a very efficient breathing system that uses air filled tubes, called trachea, to deliver oxygen directly to cells. Oxygen flows in as required into the tracheal system through valves on the insect, called spiracles.

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Answer 2

• Respiration takes place through spiracles, which are tiny openings on the sides of the cockroach's body.
• Spiracles function as muscle valves that allow air to enter the respiratory system through external holes.
• Cockroaches have tracheae, which are their respiratory organs.
• In the internal system, the trachea is a thick network of air passages.
• The pressure inside the system is understood to be balanced by tracheae.
• When oxygen-rich air enters the cockroach's body through spiracles and travels through the tracheal tubes, it diffuses into the various tissues and cells. To free energy, oxygen is depleted.
• Carbon-dioxide-rich air enters the trachea and exits via the spiracles. The respiratory process produces carbon dioxide, which is exhaled.