In both sexes of cockroach, a pair of jointed | vedclass

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Question

Correct answer is option ($1$), because in both sexes of cockroach, $10^{	ext {th }}$ segment bears a pair of jointed filamentous structures called a

Vedclass · Accepted Answer

$10^{	ext {th }}$ segment

Vedclass · Answer

Correct answer is option ($1$), because in both sexes of cockroach, $10^{	ext {th }}$ segment bears a pair of jointed filamentous structures called anal cerci.

Options ($2$), ($3$) and ($4$) are incorrect because $5^{	ext {th }}, 8^{	ext {th }}$ and $9^{	ext {th }}$ segments do not bear such structures. In adult cockroaches only $10^{	ext {th }}$ segments are present in abdomen. $11^{	ext {th }}$ abdominal segment is absent.

In both sexes of cockroach, a pair of jointed filamentous structures called anal cerci are present on

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