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Assertion : Cockroach shows sexual dimor...

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

A

If both assertion and reason are true and reason is the correct explanation of assertion

B

If both assertion and reason are true but reason is not the correct explanation of assertion

C

If assertion is true but reason is false

D

If both assertion and reason are false

Text Solution

Verified by Experts

The correct Answer is:
C
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.
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NCERT FINGERTIPS-STRUCTURAL ORGANISATION IN ANIMALS-Structural Organisation In Animals
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  11. Assertion : Smooth muscles are known as involuntary muscles Reason :...

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