- 1(current)
Q. No.The dorsal sclerites in Periplaneta americana are called as:
| 1. | Sternites | 2. | Tergites |
| 3. | Pleurites | 4. | Arthroidal membranes |
Subtopic: Cockroach: Head & Mouth Parts | Cockroach: Structure of Thorax |
81%
From NCERT
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In cockroach, a chitinous hard exoskeleton covers:
1. The head segment only
2. The head and the thorax segment only
3. The thorax and the abdomen only
4. The entire body
Subtopic: Cockroach: Head & Mouth Parts |
77%
From NCERT
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Consider the given statements:
1. Only Statement I is correct
2. Only Statement II is correct
3. Both Statement I and Statement II are correct
4. Both Statement I and Statement II are incorrect
| Statement I: | The head of cockroach is at right angle to the longitudinal body axis. |
| Statement II: | The head of cockroach is formed by the fusion of six segments. |
1. Only Statement I is correct
2. Only Statement II is correct
3. Both Statement I and Statement II are correct
4. Both Statement I and Statement II are incorrect
Subtopic: Cockroach: Head & Mouth Parts |
90%
From NCERT
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Which of the following mouth parts of cockroach are paired?
| 1. | Labrum | 2. | Labium |
| 3. | Hypopharynx | 4. | Maxilla |
Subtopic: Cockroach: Head & Mouth Parts |
80%
From NCERT
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In cockroach:
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
| I: | The head capsule bears a pair of compound eyes. |
| II: | A pair of antennae arise from the membranous sockets lying in front of the eyes. |
| III: | Mouth parts are biting and chewing type. |
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
Subtopic: Cockroach: Intro & External Morphology | Cockroach: Head & Mouth Parts |
From NCERT
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Subtopic: Cockroach: Head & Mouth Parts |
89%
From NCERT
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The tegmina in Periplaneta americana are:
| 1. | Mesothoracic forewings not used in flight |
| 2. | Mesothoracic forewings used in flight |
| 3. | Metathoracic hindwings not used in flight |
| 4. | Metathoracic hindwings used in flight |
Subtopic: Cockroach: Head & Mouth Parts |
71%
From NCERT
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In cockroach:
1. Only II is correct
2. Only I is correct
3. Both I and II are correct
4. Both I and II are incorrect
| I: | the head is represented by sub-oesophageal ganglion. |
| II: | the nerve cord is located on the dorsal side of the body. |
2. Only I is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Cockroach: Head & Mouth Parts |
From NCERT
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- 1(current)
Q. No.
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