Q. No.In male cockroaches, the genital pouch is bounded by:
1. 9th and 10th terga dorsally and 10th sternum ventrally
2. 9th tergum dorsally and 9th and 10th sterna ventrally
3. 9th and 10th terga dorsally and 9th sternum ventrally
4. 9th and 10th terga dorsally and 9th and 10th sterna ventrally
1. 9th and 10th terga dorsally and 10th sternum ventrally
2. 9th tergum dorsally and 9th and 10th sterna ventrally
3. 9th and 10th terga dorsally and 9th sternum ventrally
4. 9th and 10th terga dorsally and 9th and 10th sterna ventrally
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The genital pouch in female cockroach is formed by:
1. 7th, 8th and 9th tergites
2. 7th, 8th and 9th sternites
3. 8th, 9th and 10th tergites
4. 8th, 9th and 10th sternites
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Anal styles are borne on the:
| 1. | 9th segment only in female cockroach |
| 2. | 9th segment only in male cockroach |
| 3. | 10th segment only in female cockroach |
| 4. | 10th segment only in male cockroach |
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Mosaic vision in Periplaneta is characterized by:
1. High sensitivity but low resolution
2. Low sensitivity but high resolution
3. High sensitivity and high resolution
4. Low sensitivity and low resolution
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The respiratory system of cockroach consists of a network of tracheae that open through how many spiracles present on the lateral side of the body?
1. 5
2. 5 pairs
3. 20
4. 20 pairs
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Identify the incorrect statement regarding the blood vascular system of cockroach:
1. Blood vessels are poorly developed and open into hemocoel
2. The hemolymph is composed of colorless plasma and hemocytes
3. Heart lies along the mid-ventral line of thorax and abdomen
4. Blood from sinuses enter heart through ostia
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Which of the following mouth parts of cockroach are paired?
| 1. | Labrum | 2. | Labium |
| 3. | Hypopharynx | 4. | Maxilla |
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The exoskeletal plates in the exoskeleton of cockroach are joined to each other by:
| 1. Proteinaceous pellicle | 2. Arthrodial membrane |
| 3. Ligament | 4. Cellulose threads |
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Which of the following animal tissues can be derived from all three embryonic germ layers?
1. Epithelium
2. Connective
3. Muscle
4. Neural
What cell secrets the myelin sheath around the axolemma in central nervous system?
1. Schwann cell
2. Oligodendrocyte
3. Astrocyte
4. Microglial cell
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