In female ......... and ....... sterna forms a genital pouch
$7^{th}$ and $9^{th}$
$8^{th}$ and $9^{th}$
$9^{th}$ and $10^{th}$
$6^{th}$ and $7^{th}$
Which one of the following has an open circulatory system?
Match correct pair (cockroach).
$\begin{array}{|p{0.3\linewidth}|l|} \hline Column-I & Column-II \\ \hline 1.\,\,Exoskeleton & p.\;Thorax \\ \hline 2.\,\,Three\,\,ganglion & q.\;Chitin \\ \hline 3.\,\,One\,\,pair\,\,of\,\,seminal\,\,vesicle & r.\;6^{th}-7^{th}\,\,segments\;\;of\;\;abdomen \\ \hline 4.\,\,Mushroom\,\,shaped & s.\;6^{th}\,\,segments \\ \hline \end{array}$
Select the correct sequence of organs in the alimentary canal of cockroach starting from mouth
Identify $X, Y$ and $Z$ given figure.
$X-Y-Z$
Choose incorrect answer about characters shown in cockroach.