Q.

The terga, sterna, and pleura of the cockroach body are joined by                        [2015]

1 arthrodial membrane  
2 cartilage  
3 cementing glue  
4 muscular tissue  

Ans.

(1)

Arthrodial membrane is a tough, flexible cuticle that joins the skeletal elements of cockroach and other arthropods. It connects the terga, pleura, and sterna of the cockroach body.