Question

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Provide some Information about digestive system in cockroach.



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Answer 1

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Nutrition in cockroach is holozoic and it is an omnivore, feeding on different kinds of organic matter. It takes in pieces of food and has to grind them before digesting them. Thus its mouth parts are modified accordingly for chewing the food.

external structure of cockroach

Cockroach

The digestive system includes the mouth parts, a pair of salivary glands and the alimentary canal.

digestive system of grasshopper

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Digestive System

Sub Topics

• Mouthparts of cockroach
• Labrum or the upper lip
• Mandibles
• Maxillae
• Labium
• Alimentary canal
• Foregut
• Midgut
• Hindgut
• Mechanism of digestion

#The body of the cockroach is segmented into three portions head, thorax and the abdomen. The mouth parts are attached to the ventral side (underside) of the head portion and surrounds the mouth or the oral cavity which faces down.

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Answer 2

The digestive system consists of the alimentary canal and digestive glands. The alimentary canal of cockroach is divided into foregut, midgut, and hindgut. The mouth opens into a short tubular pharynx, leading to a narrow tubular passage, the oesophagus.