Topic: Frog: digestive, circulatory, respiratory, nervous and reproductive systems· Structural Organisation in Animals and Plants
Which of the following characteristics is incorrect with respect to cockroach ?
1. A ring of gastric caeca is present at the junction of midgut and hind gut.
2. Hypopharynx lies within the cavity enclosed by the mouth parts.
3. In females, 7\(^{th}\)-9\(^{th}\) sterna together form a genital pouch.
4. 10\(^{th}\) abdominal segment in both sexes, bears a pair of anal cerci.