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

The sexual dimorphism is not well marked in cockroach.

Assertion : Cockroach is unisexual and shows sexual dimorphism. Reason: Male cockroach has only anal cerci while female cockroach has anal styles as well.

These questions consist of two statement each, printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses. A. If both Assertion and Reason are true and Reason is a correct explanation of the Assertion. B. If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion. C. If Assertion is true but Reason is false. D. If both Assertion and Reason are false. Assertion: Cockroach is unisexual and shows sexual dimorphism. Reason. Male cockraoch has only anal cerci while female cockraoch has anal styles as well.

What is sexual dimorphism in cockroach?

Discuss sexual dimorphism in cockroach.

Discuss sexual dimorphism in cockroach.

Which is missing in female cockroach, anal cerci or anal styles ?

Assertion: The heart of cockroach is neurogenic. Reason: The heartbeat rate in cockroach is 49 per minute.