- 1(current)
Q. No.Match the following phyla with their characteristic features:
| Phylum (List I) |
Characteristic Feature (List II) |
||
| A. | Chordata | 1. | Spicules for support |
| B. | Porifera | 2. | Notochord present at some stage |
| C. | Echinodermata | 3. | Segmented body |
| D. | Annelida | 4. | Radial symmetry and water vascular system |
| 1. | A-2, B-1, C-4, D-3 | 2. | A-3, B-1, C-4, D-2 |
| 3. | A-2, B-4, C-1, D-3 | 4. | A-4, B-1, C-2, D-3 |
Subtopic: Â Phylum Porifera |Â Phylum Annelida |Â Phylum Echinodermata |Â Phylum Chordata |
 83%
Level 1: 80%+
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Consider the given statements:
The number of correct statements is:
| I: | Annelids are metamerically segmented animals with a true coelom. |
| II: | Arthropods are the most abundant group of animals characterised by the presence of jointed appendages. |
| III: | Molluscs have a soft body surrounded by an external calcareous shell. |
| IV: | Echinoderms possess a spiny skin. |
| V: | Hemichordates are fresh water animals. |
| 1. | 2 | 2. | 3 |
| 3. | 4 | 4. | 5 |
Subtopic: Â Phylum Annelida |Â Phylum Arthropoda |Â Phylum Mollusca |Â Phylum Echinodermata |Â Phylum Hemichordata |
 73%
Level 2: 60%+
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In Echinoderms:
| Statement I: | Digestive system is complete with mouth on the lower (ventral) side and anus on the upper (dorsal) side. |
| Statement II: | An excretory system is absent. |
| 1. | Statement I is correct; Statement II is incorrect |
| 2. | Statement I is correct; Statement II is correct |
| 3. | Statement I is incorrect; Statement II is incorrect |
| 4. | Statement I is incorrect; Statement II is correct |
Subtopic: Â Phylum Echinodermata |
 82%
Level 1: 80%+
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- 1(current)
Q. No.
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