Q. Assertion : Cockroach shows sexual dimorphism
Reason : The female cockroach bears a pair of short thread like anal styles

 3121  240 Structural Organisation in Animals Report Error

Solution:

In cockroach, males and females have slightly different morphology, hence showing sexual dimorphism. One of the distinguishing features is presence of anal styles, (paired thread-like structure), only in males. Females lack anal styles.