Identify $X$ and $Y$
$X$ - Hepatic caeca, $Y$ - lleum
$X$ - Colon, $Y$ - Malpighian tubes
$X$ - Gizzard, $Y$ - Midgut
$X$ - Hepatic caeca, $Y$ - Malpighian tube
In both sexes of cockroach, a pair of jointed filamentous structures called anal cerci are present on
It does not take part in excretion in cockroach
What external changes are visible after the last moult of a cockroach nymph?
In female ......... and ....... sterna forms a genital pouch
Which of the following is the correct statement about the circulatory system of cockroach