Cockroach shows ____ adaptations.

Cockroach is a/an animal.

Ocellar spots situated at the base of each antenna of cockroach is called as _____

Foregut of cockroach is also known as _____ .

Circlet of six chitinous teeth and backwardly directed bristles are present in ____ .

Blood filled cavity in cockroach is called _____

In cockroach, ventral nerve cord is present in the

In cockroach, malpighian tubules are present at junction of

The main excretory organ of cockroach is

Central nervous system consists of