Figure given below shows reproductive system of female cockroach. The correct labellings indicated by alphabets $(A, B \& C)$ are respectively
$A$-Spermatheca, $B$-Collaterial glands, $C$-Gonapophyses
$A$-Phallic gland, $B$-Collaterial glands, $C$-Gonapophyses
$A$-Spermatheca, $B$-Seminal vesicle, $C$-Gonapophyses
$A$-Spermatheca, $B$-Collateral glands, $C$-Tegmina
Explain : Cockroach is harmful for human beings.
Answer in one word or one line.
Where do you find malphigian tubules?
It is part of male cockroach
Consider the following statements regarding cockroach and mark the correct option.
$(i)$ Head is formed by the fusion of $6$ -segments.
$(ii)$ Mouth parts are biting and chewing type.
$(iii)$ Crop is the part of mid gut.
Give names of female and male organs located in abdomen of cockroach.