- 1(current)
Q. No.All members are not exclusively marine in:
1. Hemichordata
2. Ctenophora
3. Echinodermata
4. Porifera
1. Hemichordata
2. Ctenophora
3. Echinodermata
4. Porifera
Subtopic: Â Phylum Porifera |
 80%
Level 1: 80%+
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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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How many of the given statements regarding members of Porifera are correct?
1. 2
2. 3
3. 4
4. 5
| I: | They are exclusively marine. |
| II: | They have cellular level of organisation. |
| III: | They have a water vascular system with tube feet. |
| IV: | Digestion is intracellular. |
| V: | Fertilisation is external and development is direct. |
2. 3
3. 4
4. 5
Subtopic: Â Phylum Porifera |
 57%
Level 3: 35%-60%
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Match each item in Column-I with one in Column-II and select the best match from the codes given:
Codes:
| Column-I | Column-II | ||
| A. | Comb plates | P. | Cnidaria |
| B. | Metagenesis | Q. | Mollusca |
| C. | Canal system | R. | Sponges |
| D. | Radula | S. | Ctenophora |
| A | B | C | D | |
| 1. | S | P | R | Q |
| 2. | P | S | R | Q |
| 3. | P | S | Q | R |
| 4. | S | P | Q | R |
Subtopic: Â Phylum Porifera |Â Phylum Coelenterata |Â Phylum Ctenophora |Â Phylum Mollusca |
 89%
Level 1: 80%+
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Which cells are collared flagellated cells found in sponges?
1. Choanocytes
2. Interstitial cells
3. Gastrodermal cells
4. Nematocytes
1. Choanocytes
2. Interstitial cells
3. Gastrodermal cells
4. Nematocytes
Subtopic: Â Phylum Porifera |
 95%
Level 1: 80%+
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- 1(current)
Q. No.
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