Q. No.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
Match the following columns with reference to cockroach and select the correct option:
| Column - I | Column - II |
| (a) Grinding of | (i) Hepatic caeca the food particles |
| (b) Secrete gastric | (ii) 10th segment juice |
| (c) 10 pairs | (iii) Proventriculus |
| (d) Anal cerci | (iv) Spiracles |
| (v) Alary muscles |
| Options: | (a) | (b) | (c) | (d) |
| 1. | (iii) | (i) | (iv) | (ii) |
| 2. | (iv) | (iii) | (v) | (ii) |
| 3. | (i) | (iv) | (iii) | (ii) |
| 4. | (ii) | (iii) | (i) | (iv) |
Which one of the following structure in Pheretima is correctly matched with its function?
1. Typhlosole - storage of extra nutrients
2. Clitellum - secretes cocoon
3. Gizzard - absorbs digested food
4. Setae - defence against predators
Respiration in insects is called direct because
| 1. | the cells exchange O2/CO2 directly with the air in the tubes |
| 2. | the tissues exchange O2/CO2 directly with coelomic fluid |
| 3. | the tissues exchange O2/CO2 directly with the air outside through body surface |
| 4. | tracheal tubes exchange O2/CO2 directly with the haemocoel with tissues which then exchange with tissues |
Match the following.
|
Column I |
Column II |
|
A. Phallomere B. Gonopore C. Spermatophore D. Ovarioles |
1. Chain of developing ova 2. Bundles of sperm 3. Opening of the ejaculatory duct 4. The external genitalia |
Codes
| Options: | A | B | C | D |
| 1. | 3 | 4 | 2 | 1 |
| 2. | 4 | 3 | 2 | 1 |
| 3. | 4 | 2 | 3 | 1 |
| 4. | 2 | 4 | 3 | 1 |
Match the following.
|
Column I |
Column II |
|
A. Hermaphrodite B. Direct development C. Chemoreceptor D. Blood gland in earthworm |
1. Produces blood cells and haemoglobin 2. Testis and ovary in the same animal 3. Larval form absent 4. Sense of chemical substances |
| Options: | A | B | C | D |
| 1. | 2 | 3 | 4 | 1 |
| 2. | 3 | 2 | 4 | 1 |
| 3. | 1 | 3 | 2 | 4 |
| 4. | 2 | 4 | 3 | 1 |
Which one of the following statements is true for cockroach?
1. The number of ovarioles in each ovary are ten
2. The larval stage is called caterpillar
3. Anal styles are absent in females
4. They are ureotelic
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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