In Cnidarians the digestion is
| 1. | Intracellular | 2. | Extracellular |
| 3. | Intercellular | 4. | Both 1 and 2 |
Which of the following is true about Gastro-vascular cavity of Cnidarians?
| 1. | It contains single opening |
| 2. | Mouth on hypostome |
| 3. | Anus on hypostome |
| 4. | Both 1 and 2 |
Alternation of generation is present in
| 1. | Sea-pen | 2. | Sea-fan |
| 3. | Obelia | 4. | Sea anemone |
Which of the following is incorrect statement
1. Polyp produce medusae asexually
2. Medusae produce polyp sexually
3. Polyp produce medusae sexually
4. Obelia shows metagenesis
Which of the following germinal layer is absent in Cnidarians
| 1. | Ectoderm | 2. | Endoderm |
| 3. | Mesoderm | 4. | Both 2 and 3 |
Which is true for flatworms?
| 1. | Bilaterally symmetrical |
| 2. | Triploblastic body plan |
| 3. | Acoelomate animals |
| 4. | All of these |
Members of the Platyhelminthes are called Flatworms because of
| 1. | Triploblastic body plan |
| 2. | Bilateral symmetry |
| 3. | Organ level of organisation |
| 4. | Flattened body |
Hooks and Suckers are present in
| 1. | All Flatworms |
| 2. | Parasitic flatworms |
| 3. | Non-parasitic flatworms |
| 4. | None of these |
Which of the following is known liverfluke
1. Taeniasaginata
2. Taeniasolium
3. Fasciola hepatica
4. Schistoma
Aschelminthes are called roundworms because
| 1. | Body is circular in cross-section |
| 2. | Pharynx is muscular |
| 3. | Sexual dimorphism is present |
| 4. | Both 2 and 3 |