Question

The terga, sterna, and pleura of cockroach body are joined by
A. Arthrodial membrane
B. Cartilage
C. Cementing glue
D. Muscular tissue

Answer 1

Cockroaches are one of the hardiest insects that belong to the group Arthropoda. Arthropods are one of the two animal phyla that have the largest number of species. They are characterized by a hard exoskeleton and segmented body.

Complete answer: Cockroaches are characterized by their brown shiny outer appearance. It is due to their hard exoskeleton, which is made of pectin. Cockroaches can survive almost in any habitat. They can eat paper, wood, kitchen waste, etc. Cockroaches belong to Arthropods. Arthropods are represented by a large number of insect species. All arthropods are characterized by the presence of a segmented body to which jointed appendages are present along each segment of their body. These organisms also have an outer hard skeleton called the exoskeleton. Cockroaches also have a brown colored exoskeleton and segmented body. There are three segments into which the cockroach body is divided. These segments are the head, abdomen, and thorax. Each segment is further divided into four plates called terga, sterna, and two lateral pleura. These divisions are joined together by the Arthrodial membrane. It is a hard but flexible cuticle that helps in the movement of the segments of the Arthropod body. It also provides flexibility to the insect.
Therefore, option A is the correct answer.

Note: Cockroaches can survive harshest of environments. They can also survive radiations that are lethal to all other organisms. Cockroaches undergo molting which means that their cell divides one a week. This makes their cells protective or radiations.