+3 votes
in Class 12 by kratos

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

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

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

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

(4) Males bear a pair of short thread-like **** styles.

1 Answer

+2 votes
by kratos
 
Best answer

Pair of small, unsegmented **** style is present in the ninth segment of the male cockroach only.

Hence, the correct option is (4).

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