Which of the following statement is correct about cockroach?
So, the correct answer is ‘It possesses ventral nerve cord‘
Which one of the following statements is incorrect pertaining to cockroach?
So the correct answer is ‘Wall of the trachea is made with lamina propria, endothelium, and taenidia‘.
Which of the following is correct wrt the eyes of the cockroach?
Phallomeres are three chitinous structures that surround the male gonophore which help in transfer of the spermatophore from male cockroach to female cockroach. Ocellus is a simple eye that occurs in insects and other invertebrates. It typically consists of light-sensitive cells and single cuticular lens.
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.
Is cockroach an omnivore?
Cockroaches are omnivorous scavengers that devour keratin. They will bite human flesh in both the living and dead with resultant injury.
What is the phylum of cockroach?
How many malpighian tubules does a cockroach have?
This paper describes the different regions of the Malpighian tubules and the associated structures (ampulla, midgut, ileum) in the cockroach, Periplaneta americana. There are about 150 tubules in each insect. Each tubule consists of at least three parts.
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 false for heart of cockroach?
Option B: Body cavity of cockroach is known as hemocoel as it remains filled with hemolymph (blood). The heart is present along the mid-dorsal line of the body. … As the heart of cockroach is made up of 13 chambers, therefore these are the incorrect options. Thus, the correct answer is option (B) 13.