Unlike roundworms, flatworms:
1. are triploblastic
2. exhibit bilateral symmetry
3. do not have a coelom
4. reproduce only by sexual methods
| 1. | is a cestode and requires two intermediate hosts – a cow and a pig |
| 2. | is a trematode and requires two intermediate hosts – a chicken and a fish |
| 3. | is a nematode and requires two intermediate hosts – a fish and a pig |
| 4. | is a trematode and requires two intermediate hosts – a snail and a fish |
Regarding birds, the number of correct statements from the statements given will be:
| I: | The forelimbs are modified into wings. |
| II: | Flightless birds do not have feathers. |
| III: | Skin is dry without glands except the oil gland at the base of the tail. |
| IV: | Endoskeleton is fully ossified (bony) and the long bones are hollow with air cavities (pneumatic). |
| V: | The hind limbs generally have scales. |
1. 2
2. 3
3. 4
4. 5
| List I | List II | ||
| A. | Taenia | I. | Nephridia |
| B. | Paramoecium | II. | Contractile vacuole |
| C. | Periplaneta | III. | Flame cells |
| D. | Pheretima | IV. | Urecose gland |
| Options: | A | B | C | D |
| 1. | II | I | IV | III |
| 2. | I | II | III | IV |
| 3. | I | II | IV | III |
| 4. | III | II | IV | I |
| 1. | Echinodermata D | 2. | Ctenophora |
| 3. | Hemichordata | 4. | Coelenterata |
| A: | Presence of a mid-dorsal, solid and double nerve cord. |
| B: | Presence of closed circulatory system. |
| C: | Presence of paired pharyngeal gill slits |
| D: | Presence of dorsal heart. |
| E: | Triploblastic pseudocoelomate animals. |
| 1. | C, D and E only | 2. | A, C and D only |
| 3. | B and C only | 4. | B, D and E only |
| List-I | List-II | ||
| (A) | Contractile vacuole | (I) | Asterias |
| (B) | Water vascular system | (II) | Amoeba |
| (C) | Canal system | (III) | Spongilla |
| (D) | Flame cells | (IV) | Taenia |
| Options: | (A) | (B) | (C) | (D) |
| 1. | (IV) | (II) | (I) | (III) |
| 2. | (I) | (III) | (II) | (IV) |
| 3. | (III) | (II) | (I) | (IV) |
| 4. | (II) | (I) | (III) | (IV) |