Question
Biology Question on Structural Organisation of Animals and plants
Cockroach shows sexual dimorphism 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
Answer
If assertion is true but reason is false
Explanation
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.