Tracheae are the largest tubes in the insect respiratory system, kept open by chitin spirals and covered by a waxy cuticle.
Las tráqueas son los tubos más grandes en el sistema respiratorio de los insectos, mantenidos abiertos por espirales de quitina y cubiertos por una cutícula cerosa.
| Front | Define tracheae. |
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| Back | Tracheae - largest tubes of insect respiratory system that lead away from spiracles
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