Mouthparts of cockroach associated with grinding and incising region are
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it is labrum labium & hypopharings
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Cockroaches have basic mouthparts which at first consist of single labrum which is the upper lip of it. A specifically one structure, hypo pharynx with a tongue like organ and it’s just located exactly at the center.
They have a primary or a true jaws i.e. Mandibles which is actually used for chewing and grinding the food. Another two parts are Maxillae (secondary jaws) and labium, it’s the fusion of two segments with enclosed the mouth cavity.
Explanation:
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