question_answer

Which of the following statement is incorrect w.r.t. alimentary canal of cockroach?

A) Oesophagus leads into a sac like structure called crop used for storing of food

B) Gizzard has an outer layer of thick circular muscles and thick inner cuticle forming six highly chitinous plate called teeth

C) A ring of 6-8 blind tubules called hepatic or gastric caeca is present at the junction of foregut and midgut

D) The hindgut is narrower than midgut and is differentiated into ileum, colon and rectum