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biology

Select the correct statement from the ones given below with respect to Periplaneta americana

A

Nervous system located dorsally, consists of segmentally arranged ganglia joined by a pair of longitudinal connectives.

B

Males bear a pair of short thread like anal styles.

C

There are 16 very long Malpighian tubules present at the junctions of midgut and hindgut.

D

Grinding of food is carried out only by the mouth parts.

Answer

Males bear a pair of short, thread-like anal styles which are absent in females, anal/caudal styles arise from the 9th abdominal segment in the male cockroach.
So, the correct option is 'Males bear a pair of short thread-like anal styles'.

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