Assertion (A) : Head of a cockroach shows great mobility in all directions due to flexible neck.Reason (R) : Neck is formed by the fusion of 6 segments.
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a
Both A and R are true and R is the correct explanation of A.
b
Both A and R are true, but R is not the correct explanation of A.
c
A is true, but R is false.
d
A is false, but R is true.
answer is C.
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Detailed Solution
Head is a fusion of six segments in cockroach. Neck is an extension of prothorax.