In cockroach, identify the parts of the foregut in correct sequence:-
1. Mouth Oesophagus Pharynx Crop Gizzard
2. Mouth Crop Pharynx Oesophagus Gizzard
3. Mouth Gizzard Crop Pharynx Oesophagus
4. Mouth Pharynx Oesophagus Crop Gizzard
Which one of the following characteristics is incorrect with respect to cockroaches?
1. | In females, 7th - 9th sterna together form a genital pouch. |
2. | 10th abdominal segment in both sexes, bears a pair of anal cerci. |
3. | A ring of gastric caeca is present at the junction of midgut and hind gut. |
4. | Hypopharynx lies within the cavity enclosed by the mouth parts. |
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