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Select the correct statement from the ones given below w.r.t the periplaneta americana.
Option: 1
Nervous system located dorsally , consist of segmentally arranged ganglia joined by a pair of longitudinal connectives
Option: 2
Males bear a pair of short thread like anal styles
Option: 3
There are 16 very long malphighian tubules present at the junction of midgut and hindgut
Option: 4
Grinding of food is carried out only by the mouth parts
Answers (1)
As we have learned
Nervous System in Cockroach -
The nervous system of cockroach consists of a series of fused, segmentally arranged ganglia (9) joined by paired longitudinal connectives on the ventral side. Three ganglia lie in the thorax & six in the abdomen.
- wherein
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