Structure made up of chitin in cockroach
Mouthparts, tergites, Alimentary canal
Anal carci, crop, testis .
Phallomere, tooth in gizzard, tergites
Sternites, anal style, Malpighian tubes
It is not part of digestive system of cockroach
Which one does not occur in Cockroach leg
Mark the odd one in each series:
Protonema; mesothorax; metathorax; coxa
The nymph grow by mouthing about..... to reach the adult form
Explain : Cockroach is harmful for human beings.