Which of the following is correct for common cockroach?

So the correct answer is ‘Food is ground by mandibles and gizzard’.

Which of the following is cockroach?

Some of the scientific names of the different species of cockroaches are the American cockroach (Periplaneta americana), the Florida woods cockroach (Eurycotis floridana), the Oriental cockroach (Blatta orientalis), the German cockroach (Blattella germanica), the Asian cockroach (Blattella asahinai), the Surinam …

Which of the following is correct regarding excretory system of cockroach?

Thus the correct answer is (D). Malpighian tubules are the excretory system of cockroaches. Additional InformationIn insects which feed on harmful allelochemicals, malpighian tubules rapidly excrete these compounds from the hemolymph.

Where is food stored temporarily in the alimentary canal of a cockroach?

Food is stored temporarily in a sac like structure called crop.

What is the economic importance of cockroach?


Cockroaches shed their skins and their droppings contaminate hundreds of thousands of kilograms of stored food every year. Cockroaches are one of the most difficult to control pests due to their their ability to quickly become resistant to insecticides and their prolific reproductive habits.

IMPORTANT:  What time of day do mosquitoes bite the most?

What is the ganglion in cockroach?

The supra-oesophageal ganglion or cerebral ganglion is a bilobed structure situated in the head in front of oesophagus, above the tentorium and almost between the bases of the antennae. It is formed by the fusion of three pairs of ganglia. It represents the brain and is concerned chiefly with sensory function.

Which type of image is found in eye of cockroach?

Step by step answer:The eye of cockroach is the compound type and is composed of many units called ommatidium. Insects have two kinds of ommatidia. The images formed in nocturnal insects like a cockroach in which the retinulae are present deep below the vitrellae and crystalline cone.

Which one of the following is incorrect statement about cockroach?

Cockroaches being an insect excrete using malpighian tubules. On the other hand, a prawn is a crustacean. It excretes using green glands that help in the removal of nitrogenous waste from its body. Thus, this statement is incorrect.

What is the function of midgut in cockroach?

Inside the gizzard, six chitinous cuticular teeth are present which help in pulverizing the food. Midgut is the main site of digestion and assimilation. Hindgut is differentiated into a narrow ileum, wider colon and sac like rectum.

What is the function of Mesenteron in cockroach?

Mesenteron is the main site of enzyme production digestion and absorption. A muscular sphincter is present at the posterior part of mesenteron which prevents entry of undigested food and uric acid from hind gut into the mitgut.

All about pests