Cockroach Hosts - Which of the Following is Correct About Cockroach Hosts?

The heart of the cockroach is composed of thirteen contractile chambers. While all of the chambers are not valved, the ostia do have valves to control the flow of blood from the heart to the pericardial sinus. The thoracic ostia are paired and contain two pairs of spiracles.

The ovaries of cockroaches are made up of paired ovaries, which contain oocytes. These oocytes are not fully mature until the female cockroach mates, which allows her to produce up to three batches of fertilized eggs sequentially. A female cockroach will eat an infertile egg to get the protein stored in the yolk of the egg.

Cockroaches do not have wings until the nymph stage. However, they develop wing pads during their last molt and turn them into functional wings. The thorax of the cockroach is made up of three segments – the thorax, walking legs, and coxae. Each segment has sclerites.

A cockroach’s hindgut and midgut are lined with a loose, transparent peritrophic membrane. The peritrophic membrane is responsible for the storage of food in these areas. The gut epithelium secretes continuously and may contain several mechanisms for the elimination of waste products such as nitrogen and uric acid.