Q.

Male cockroach differs from female cockroach in having

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a

a pair of jointed filamentous structures called anal cerci

b

wings that extend beyond the abdomen

c

a flat extension of the upper body wall that conceals head

d

a pair of thread-like antennae arising from membranous sockets lying in front of eyes

answer is B.

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Detailed Solution

Male cockroach differs from the female cockroach in having wings that extend beyond the abdomen in male cockroach.

Antennae and anal cerci are present in both males and females.

The head is connected with thorax by a short extension of the prothorax known as the neck.

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