In cockroach, the testes are present in
$3,4,5$ abdominal segments
$4,5,6$ abdominal segments
$5,6,7$ abdominal segments
$6,7,8$ abdominal segments
The blood of cockroach contains no respiratory pigment. It means that
If the head of cockroach is cut off, it will still be alive for as long as one week. This is because of
It is part of male cockroach
What external changes are visible after the last moult of a cockroach nymph?
Mention the function of the following
Malpighian tubules