NEET 2021 Biology Paper

● Option (1) is incorrect because a ring of gastric caecae is present at the junction of foregut and midgut. At the junction of midgut and hindgut, malpighian tubules are present.
● Hypopharynx lies within the cavity enclosed by mouthparts.
● In female cockroach, the 7th sternum is boat shaped and together with the 8th and 9th sterna forms a genital pouch.
● 10th abdominal segment in both sexes, bears a pair of anal cerci and 9th sternum only in male cockroach, bears a pair of chitinous anal style.