Nitrogenous excretory product is uric acid. So, the correct answer is ‘The food is grinded by mandibles and gizzard’.
Which of the following statement is correct about cockroach?
So, the correct answer is ‘It possesses ventral nerve cord‘
Which of the following is a 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 structure in cockroach is differentiated into funnel shaped chambers with Ostia on either side?
The haemolymph is composed of colourless plasma and haemocytes. Heart of cockroach consists of elongated muscular tube lying along mid dorsal line of thorax and abdomen. It is differentiated into funnel shaped chambers with ostia on either side.
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.
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.
What is cockroach milk?
Cockroach milk is a protein rich, crystallized substance produced by a specific type of cockroach called Diploptera punctata ( 1 ). This species is unique because it gives birth to live offspring. Members make “milk” in the form of protein crystals to serve as food for their developing young ( 1 ).
What happens in the common cockroach?
In cockroach, malpighian tubules project from the midgut, haemoglobin is not the respiratory pigment rather haemocyanin is the respiratory pigment which helps in exchange of gases and ammonia is the respiratory product of cockroach. Mandibles and gizzard are used for grinding of food.
Which sentence is correct for circulatory system of cockroach?
So the correct answer is ‘It has a 13-chambered heart with a pair of ostia in each chamber’.
How many ootheca are formed by female cockroach?
On an average, 9 to 10 oothecae are produced by a female cockroach.