Question

Why is the development of periplaneta americana called paurometabolous? Mention the organs in uts digestive system that help in storing and grinding?

Answer 1

metamorphosis to the adult state from the juvenile state is gradual and without any sudden, radical change of body form is called as paurometabolous...as 13times moulting takes place in periplaneta...

storage organ=crop

grinding organ=gizzard with chitinous teeth..