Respuesta :
The correct option is (A). It closes down the tracheal system's entry points.
In the tracheal respiratory system used by insects, oxygen and carbon dioxide are predominantly transported by tubes filled with air, or tracheae. Typically, the tracheal system enters the cuticle through spiracles, which can be closed, and finishes in tiny tubes called tracheoles close to or inside the tissues.The segmental holes known as spiracles, through which the tracheae open to the outside of the animal, typically include a shutting mechanism that minimizes water loss. When the tissues have a high concentration of carbon dioxide or a low internal oxygen concentration, the spiracles
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An oil-water mixture works as an insecticidal spray against mosquitoes and other insects because it blocks the openings into the tracheal system.
Your larynx (voice box) and bronchi are connected by a lengthy tube called the trachea. Your lungs receive air from your bronchi. A crucial component of your respiratory system is trachea. Cartilage rings make up the trachea. Mucus-producing cells line the inside of it. In the tracheal respiratory system used by insects, oxygen and carbon dioxide are predominantly transported by tubes filled with air, or tracheae.
Typically, the tracheal system passes through the cuticle using microscopic tubes called tracheoles and spiracles, which can be closed. The trachea is a tube-like organ located in the upper chest and neck. As a person breathes, it moves air to and from the lungs. Air enters the lungs through the mouth or nose, travels down the trachea, and then is exhaled.
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